./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/zero_sum_m2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/zero_sum_m2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs --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 64e2b591ee375a99f019d69fefe326e9fd46db25f76a67e4f3bee333adbec68f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:31:16,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:31:16,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:31:16,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:31:16,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:31:16,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:31:16,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:31:16,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:31:16,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:31:16,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:31:16,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:31:16,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:31:16,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:31:16,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:31:16,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:31:16,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:31:16,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:31:16,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:31:16,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:31:16,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:31:16,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:31:16,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:31:16,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:31:16,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:31:16,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:31:16,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:31:16,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:31:16,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:31:16,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:31:16,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:31:16,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:31:16,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:31:16,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:31:16,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:31:16,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:31:16,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:31:16,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:31:16,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:31:16,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:31:16,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:31:16,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:31:16,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 13:31:16,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:31:16,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:31:16,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:31:16,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:31:16,516 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:31:16,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:31:16,516 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:31:16,517 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:31:16,517 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:31:16,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:31:16,525 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:31:16,525 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:31:16,526 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:31:16,526 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:31:16,526 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:31:16,526 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:31:16,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:31:16,528 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:31:16,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:31:16,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:31:16,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:31:16,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:31:16,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:31:16,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:31:16,530 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:31:16,530 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:31:16,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:31:16,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:31:16,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:31:16,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:31:16,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:31:16,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:31:16,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:31:16,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:31:16,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:31:16,533 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:31:16,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:31:16,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:31:16,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:31:16,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:31:16,534 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_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64e2b591ee375a99f019d69fefe326e9fd46db25f76a67e4f3bee333adbec68f [2021-11-19 13:31:16,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:31:16,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:31:16,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:31:16,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:31:16,923 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:31:16,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/array-crafted/zero_sum_m2.c [2021-11-19 13:31:17,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/data/217acd3bf/058e1733ebee47698866527c42fb61e7/FLAGbae5ea32b [2021-11-19 13:31:17,476 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:31:17,477 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/sv-benchmarks/c/array-crafted/zero_sum_m2.c [2021-11-19 13:31:17,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/data/217acd3bf/058e1733ebee47698866527c42fb61e7/FLAGbae5ea32b [2021-11-19 13:31:17,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/data/217acd3bf/058e1733ebee47698866527c42fb61e7 [2021-11-19 13:31:17,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:31:17,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:31:17,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:31:17,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:31:17,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:31:17,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:31:17" (1/1) ... [2021-11-19 13:31:17,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fee84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:17, skipping insertion in model container [2021-11-19 13:31:17,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:31:17" (1/1) ... [2021-11-19 13:31:17,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:31:17,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:31:18,112 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_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/sv-benchmarks/c/array-crafted/zero_sum_m2.c[402,415] [2021-11-19 13:31:18,148 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:31:18,159 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:31:18,188 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_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/sv-benchmarks/c/array-crafted/zero_sum_m2.c[402,415] [2021-11-19 13:31:18,219 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:31:18,239 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:31:18,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18 WrapperNode [2021-11-19 13:31:18,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:31:18,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:31:18,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:31:18,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:31:18,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,294 INFO L137 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2021-11-19 13:31:18,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:31:18,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:31:18,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:31:18,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:31:18,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:31:18,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:31:18,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:31:18,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:31:18,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (1/1) ... [2021-11-19 13:31:18,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:31:18,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:18,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:31:18,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:31:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:31:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 13:31:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:31:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 13:31:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:31:18,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:31:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 13:31:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:31:18,533 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:31:18,535 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:31:18,703 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:31:18,744 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:31:18,745 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-19 13:31:18,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:31:18 BoogieIcfgContainer [2021-11-19 13:31:18,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:31:18,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:31:18,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:31:18,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:31:18,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:31:17" (1/3) ... [2021-11-19 13:31:18,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c12a2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:31:18, skipping insertion in model container [2021-11-19 13:31:18,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:31:18" (2/3) ... [2021-11-19 13:31:18,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c12a2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:31:18, skipping insertion in model container [2021-11-19 13:31:18,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:31:18" (3/3) ... [2021-11-19 13:31:18,759 INFO L111 eAbstractionObserver]: Analyzing ICFG zero_sum_m2.c [2021-11-19 13:31:18,770 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:31:18,770 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:31:18,882 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:31:18,891 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 [2021-11-19 13:31:18,891 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:31:18,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 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) [2021-11-19 13:31:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 13:31:18,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:18,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:18,917 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:18,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash 871733126, now seen corresponding path program 1 times [2021-11-19 13:31:18,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:18,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649819344] [2021-11-19 13:31:18,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:18,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:19,154 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:19,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649819344] [2021-11-19 13:31:19,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649819344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:31:19,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:31:19,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 13:31:19,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997255673] [2021-11-19 13:31:19,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:31:19,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:31:19,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:19,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:31:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:31:19,238 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 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) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-11-19 13:31:19,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:19,334 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2021-11-19 13:31:19,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:31:19,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 [2021-11-19 13:31:19,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:19,347 INFO L225 Difference]: With dead ends: 24 [2021-11-19 13:31:19,352 INFO L226 Difference]: Without dead ends: 11 [2021-11-19 13:31:19,355 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 [2021-11-19 13:31:19,359 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:19,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-19 13:31:19,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-19 13:31:19,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2021-11-19 13:31:19,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-11-19 13:31:19,394 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 15 transitions. Word has length 9 [2021-11-19 13:31:19,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:19,395 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-11-19 13:31:19,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-11-19 13:31:19,396 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-11-19 13:31:19,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 13:31:19,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:19,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:19,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 13:31:19,397 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:19,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:19,398 INFO L85 PathProgramCache]: Analyzing trace with hash 280227729, now seen corresponding path program 1 times [2021-11-19 13:31:19,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:19,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935099834] [2021-11-19 13:31:19,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:19,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 13:31:19,489 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:19,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935099834] [2021-11-19 13:31:19,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935099834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:31:19,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:31:19,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 13:31:19,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453239034] [2021-11-19 13:31:19,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:31:19,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:31:19,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:19,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:31:19,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:31:19,494 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-19 13:31:19,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:19,562 INFO L93 Difference]: Finished difference Result 21 states and 31 transitions. [2021-11-19 13:31:19,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:31:19,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-11-19 13:31:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:19,565 INFO L225 Difference]: With dead ends: 21 [2021-11-19 13:31:19,565 INFO L226 Difference]: Without dead ends: 15 [2021-11-19 13:31:19,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:31:19,568 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:19,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:19,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-19 13:31:19,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-19 13:31:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 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) [2021-11-19 13:31:19,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-11-19 13:31:19,579 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 10 [2021-11-19 13:31:19,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:19,580 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-19 13:31:19,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-19 13:31:19,581 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-19 13:31:19,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 13:31:19,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:19,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:19,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 13:31:19,583 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:19,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:19,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2106682685, now seen corresponding path program 1 times [2021-11-19 13:31:19,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:19,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918996737] [2021-11-19 13:31:19,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:19,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:31:19,674 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:19,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918996737] [2021-11-19 13:31:19,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918996737] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:19,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517369910] [2021-11-19 13:31:19,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:19,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:19,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:19,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:19,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 13:31:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:19,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:31:19,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:31:19,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:31:20,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517369910] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:20,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [107605896] [2021-11-19 13:31:20,040 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:20,040 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:20,045 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:20,052 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:20,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:20,099 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:20,107 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:20,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:20,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:20,141 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_7|], 9=[|v_#valid_9|]} [2021-11-19 13:31:20,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:20,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:20,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:20,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:20,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:20,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:20,191 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:20,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:20,246 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:20,296 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:20,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:20,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:20,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:20,311 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:20,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:20,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:20,372 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:20,372 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:20,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,401 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,406 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:20,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:20,415 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,420 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:20,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:20,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:20,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:20,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:20,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:20,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:20,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:20,472 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:20,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:20,485 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:20,493 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:20,493 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:31:20,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:20,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:20,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:20,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,610 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,639 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:20,647 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:20,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:31:20,659 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:31:20,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:31:20,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,690 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:20,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:20,706 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,731 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:20,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:20,746 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,754 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:20,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:31:20,759 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:31:20,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,771 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:20,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:20,774 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,777 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:20,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:20,782 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:20,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:31:20,798 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:20,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:31:20,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:31:20,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:20,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:20,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:20,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:20,883 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:20,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:20,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:20,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:31:20,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:20,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:20,914 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:20,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:20,967 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:20,982 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:31:20,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:31:21,000 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:21,001 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:31:21,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,078 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:21,085 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:21,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,087 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:21,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:21,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:21,092 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:21,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:21,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:21,101 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 16 treesize of output 12 [2021-11-19 13:31:21,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:21,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:21,104 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:21,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,107 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:21,113 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:21,113 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:21,125 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:21,130 INFO L185 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-11-19 13:31:21,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,165 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.3 percent of original size [2021-11-19 13:31:21,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-19 13:31:21,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,212 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:21,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:21,220 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:21,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:21,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,228 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:21,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:21,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,286 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:21,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:21,294 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:21,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:21,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,305 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:21,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:21,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,356 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:21,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:21,362 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:21,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:21,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,371 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:21,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:21,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:21,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:21,434 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:21,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:21,449 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:21,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:21,733 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:21,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-19 13:31:21,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926985514] [2021-11-19 13:31:21,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:21,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:31:21,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:21,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:31:21,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:31:21,735 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2021-11-19 13:31:21,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:21,783 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2021-11-19 13:31:21,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:31:21,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-19 13:31:21,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:21,785 INFO L225 Difference]: With dead ends: 27 [2021-11-19 13:31:21,785 INFO L226 Difference]: Without dead ends: 16 [2021-11-19 13:31:21,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:31:21,791 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:21,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:31:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-19 13:31:21,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-19 13:31:21,803 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) [2021-11-19 13:31:21,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-19 13:31:21,805 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 14 [2021-11-19 13:31:21,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:21,805 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-19 13:31:21,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2021-11-19 13:31:21,806 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-19 13:31:21,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 13:31:21,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:21,807 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:21,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:22,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:22,035 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:22,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:22,035 INFO L85 PathProgramCache]: Analyzing trace with hash 617571346, now seen corresponding path program 2 times [2021-11-19 13:31:22,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:22,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758617702] [2021-11-19 13:31:22,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:22,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:22,107 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 13:31:22,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:22,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758617702] [2021-11-19 13:31:22,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758617702] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:22,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250345529] [2021-11-19 13:31:22,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:31:22,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:22,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:22,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:22,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 13:31:22,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-19 13:31:22,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:22,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:31:22,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 13:31:22,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:22,298 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 13:31:22,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250345529] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:22,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1361469085] [2021-11-19 13:31:22,302 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:22,302 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:22,303 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:22,303 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:22,303 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:22,312 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:22,313 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:22,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:22,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:22,320 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_9|], 9=[|v_#valid_11|]} [2021-11-19 13:31:22,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:22,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:22,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:22,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:22,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:22,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:22,334 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,337 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:22,372 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:22,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:22,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:22,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:22,379 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,383 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:22,388 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,388 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:22,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,399 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,400 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:22,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:22,402 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,404 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:31:22,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:31:22,407 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:22,411 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:31:22,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:22,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:31:22,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:22,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:22,429 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,434 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,437 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:31:22,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:31:22,440 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,440 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:31:22,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,509 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:22,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:22,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:31:22,522 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:31:22,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:31:22,532 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,534 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:22,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:22,540 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,546 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,548 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:22,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:22,553 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,555 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:22,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:31:22,558 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:31:22,562 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,564 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:22,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:22,569 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,571 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:22,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:22,574 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:22,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:31:22,580 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:31:22,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:31:22,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:22,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:22,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:31:22,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:22,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:22,621 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:22,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:22,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:22,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:22,646 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,666 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,675 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:31:22,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:31:22,680 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:22,681 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:31:22,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,735 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:22,738 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,739 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:22,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:22,741 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:22,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:22,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:22,749 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 16 treesize of output 12 [2021-11-19 13:31:22,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:22,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:22,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,753 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:22,756 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:22,757 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:22,762 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:22,766 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:31:22,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,793 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:31:22,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:31:22,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,828 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:22,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:22,834 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:22,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:22,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,841 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:22,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:22,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,879 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:22,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:22,884 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:22,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:22,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:22,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:22,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,929 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:22,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:22,935 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:22,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:22,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,941 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:22,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:22,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:22,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:22,977 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:22,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:22,985 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:23,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:23,265 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:23,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-11-19 13:31:23,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458045294] [2021-11-19 13:31:23,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:23,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:31:23,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:23,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:31:23,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:31:23,267 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 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) [2021-11-19 13:31:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:23,331 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2021-11-19 13:31:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:31:23,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-19 13:31:23,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:23,332 INFO L225 Difference]: With dead ends: 29 [2021-11-19 13:31:23,332 INFO L226 Difference]: Without dead ends: 20 [2021-11-19 13:31:23,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:31:23,334 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:23,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:23,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-19 13:31:23,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-19 13:31:23,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:23,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-11-19 13:31:23,339 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 15 [2021-11-19 13:31:23,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:23,339 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-11-19 13:31:23,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 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) [2021-11-19 13:31:23,340 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-11-19 13:31:23,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 13:31:23,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:23,341 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:23,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:23,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-11-19 13:31:23,563 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:23,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:23,563 INFO L85 PathProgramCache]: Analyzing trace with hash 956916582, now seen corresponding path program 3 times [2021-11-19 13:31:23,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:23,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196671198] [2021-11-19 13:31:23,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:23,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:24,463 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:24,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196671198] [2021-11-19 13:31:24,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196671198] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:24,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664596602] [2021-11-19 13:31:24,463 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:31:24,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:24,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:24,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:24,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 13:31:24,525 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:31:24,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:24,527 WARN L261 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-19 13:31:24,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 13:31:25,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:25,548 INFO L354 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2021-11-19 13:31:25,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 52 [2021-11-19 13:31:25,675 INFO L354 Elim1Store]: treesize reduction 73, result has 11.0 percent of original size [2021-11-19 13:31:25,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 17 [2021-11-19 13:31:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 13:31:25,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664596602] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:25,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2039737277] [2021-11-19 13:31:25,737 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:25,738 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:25,738 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:25,738 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:25,739 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:25,747 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:25,748 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:25,750 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:25,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:25,755 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_11|], 9=[|v_#valid_13|]} [2021-11-19 13:31:25,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:25,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:25,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:25,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:25,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:25,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:25,769 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:25,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:25,773 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:25,809 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:25,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:25,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:25,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:25,816 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:25,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:25,820 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:25,824 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:25,824 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:25,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,832 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:25,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:25,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,835 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:25,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:25,838 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:25,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:25,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:25,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:25,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:25,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:25,855 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:25,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:25,860 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:25,865 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:25,866 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:31:25,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:25,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:25,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:25,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,910 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,917 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,921 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:25,924 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:25,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:31:25,929 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:31:25,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:31:25,938 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,940 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:25,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:25,945 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,950 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,952 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:25,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:25,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,955 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:25,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:25,957 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:25,960 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,962 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:25,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:25,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,965 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:25,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:31:25,967 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:31:25,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:31:25,972 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:25,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:25,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:31:25,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:31:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:26,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:26,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:26,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:26,014 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:26,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:26,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:26,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:31:26,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:26,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:26,034 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:26,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,061 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,076 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:31:26,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:31:26,082 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:26,082 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:31:26,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,130 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:26,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:26,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,135 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:26,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:26,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:26,137 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:26,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:26,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:26,147 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 16 treesize of output 12 [2021-11-19 13:31:26,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:26,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:26,150 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:26,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,153 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:26,157 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:26,157 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:26,163 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:26,165 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:31:26,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,190 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:31:26,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:31:26,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,218 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:26,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:26,223 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:26,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:26,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:26,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:26,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,261 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:26,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:26,268 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:26,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:26,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:26,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:26,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,314 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:26,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:26,319 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:26,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:26,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,323 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:26,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:26,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:26,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:26,371 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:26,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:26,379 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:26,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:26,780 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:26,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 27 [2021-11-19 13:31:26,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619318549] [2021-11-19 13:31:26,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:26,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 13:31:26,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:26,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 13:31:26,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2021-11-19 13:31:26,783 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2021-11-19 13:31:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:27,136 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2021-11-19 13:31:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 13:31:27,138 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-19 13:31:27,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:27,139 INFO L225 Difference]: With dead ends: 33 [2021-11-19 13:31:27,139 INFO L226 Difference]: Without dead ends: 30 [2021-11-19 13:31:27,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 30 SyntacticMatches, 13 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 13:31:27,141 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:27,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 35 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:31:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-19 13:31:27,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-11-19 13:31:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2021-11-19 13:31:27,150 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 19 [2021-11-19 13:31:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:27,151 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-11-19 13:31:27,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2021-11-19 13:31:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2021-11-19 13:31:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 13:31:27,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:27,153 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:27,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:27,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-11-19 13:31:27,368 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:27,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:27,369 INFO L85 PathProgramCache]: Analyzing trace with hash -489495424, now seen corresponding path program 4 times [2021-11-19 13:31:27,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:27,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234706832] [2021-11-19 13:31:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:27,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 13:31:27,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:27,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234706832] [2021-11-19 13:31:27,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234706832] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:27,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013035324] [2021-11-19 13:31:27,432 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:31:27,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:27,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:27,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:27,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 13:31:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:27,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:31:27,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:27,600 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 13:31:27,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 13:31:27,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013035324] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:27,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [827790842] [2021-11-19 13:31:27,667 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:27,667 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:27,667 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:27,668 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:27,668 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:27,683 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:27,684 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:27,686 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:27,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:27,692 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_13|], 9=[|v_#valid_15|]} [2021-11-19 13:31:27,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:27,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:27,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:27,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:27,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:27,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:27,712 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:27,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:27,715 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:27,747 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:27,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:27,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:27,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:27,753 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:27,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:27,757 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:27,760 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:27,760 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:27,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:27,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:27,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,771 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:31:27,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:31:27,773 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:27,776 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:31:27,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:27,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:31:27,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:27,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:27,791 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:27,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:27,796 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,798 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:31:27,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:31:27,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:27,801 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:31:27,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:27,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:27,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:27,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,844 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,850 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,853 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:27,856 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:27,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:31:27,860 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:31:27,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:31:27,868 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:27,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:27,874 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,878 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,882 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:27,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:27,884 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,885 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:27,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:27,889 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:27,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,893 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:27,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:27,895 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:27,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:31:27,899 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:31:27,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:31:27,904 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:27,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:31:27,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:31:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:27,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:27,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:27,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:27,932 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:27,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:27,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:27,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:31:27,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:27,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:27,951 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:27,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:27,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:27,993 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:31:27,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:31:27,997 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:27,998 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:31:28,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,035 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:28,037 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:28,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,039 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:28,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:28,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:28,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:28,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:28,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:28,050 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 16 treesize of output 12 [2021-11-19 13:31:28,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:28,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:28,052 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:28,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:28,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:28,063 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:28,067 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:28,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:31:28,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,091 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:31:28,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:31:28,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,116 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:28,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:28,121 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:28,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:28,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:28,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:28,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,175 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:28,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:28,181 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:28,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:28,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,190 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:28,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:28,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,231 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:28,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:28,238 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:28,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:28,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,253 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:28,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:28,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:28,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:28,295 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:28,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:28,302 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:28,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:28,587 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:28,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2021-11-19 13:31:28,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671952368] [2021-11-19 13:31:28,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:28,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 13:31:28,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:28,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 13:31:28,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:31:28,589 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 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) [2021-11-19 13:31:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:28,726 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2021-11-19 13:31:28,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:31:28,727 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 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 20 [2021-11-19 13:31:28,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:28,727 INFO L225 Difference]: With dead ends: 54 [2021-11-19 13:31:28,727 INFO L226 Difference]: Without dead ends: 29 [2021-11-19 13:31:28,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-11-19 13:31:28,729 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:28,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:28,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-19 13:31:28,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-19 13:31:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:28,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-11-19 13:31:28,736 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 20 [2021-11-19 13:31:28,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:28,737 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-11-19 13:31:28,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 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) [2021-11-19 13:31:28,737 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2021-11-19 13:31:28,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-19 13:31:28,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:28,738 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:28,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:28,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable168 [2021-11-19 13:31:28,959 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:28,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:28,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1462786155, now seen corresponding path program 5 times [2021-11-19 13:31:28,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:28,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786921752] [2021-11-19 13:31:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:28,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:31:29,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:29,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786921752] [2021-11-19 13:31:29,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786921752] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:29,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845674868] [2021-11-19 13:31:29,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:31:29,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:29,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:29,033 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:29,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 13:31:29,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-19 13:31:29,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:29,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:31:29,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:31:29,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 13:31:29,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845674868] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:29,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1223468738] [2021-11-19 13:31:29,260 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:29,260 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:29,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:29,260 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:29,260 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:29,270 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:29,270 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:29,272 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:29,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:29,277 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_15|], 9=[|v_#valid_17|]} [2021-11-19 13:31:29,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:29,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:29,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:29,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:29,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:29,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:29,291 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:29,330 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:29,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:29,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:29,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:29,336 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:29,343 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,343 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:29,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,349 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:29,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:29,351 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,353 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:31:29,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:31:29,355 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:29,358 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:31:29,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:29,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:31:29,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:29,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:29,371 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,376 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,378 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:31:29,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:31:29,380 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,380 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:31:29,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:29,437 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:29,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:31:29,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:31:29,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:31:29,447 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,448 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:29,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:29,453 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,457 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,463 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:29,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:29,465 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,467 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:29,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:31:29,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:31:29,471 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,472 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:29,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:29,474 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:29,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:29,477 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:29,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:31:29,481 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:31:29,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:31:29,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:29,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:29,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:29,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:29,505 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:29,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:29,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:31:29,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:29,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:29,521 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,539 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,547 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:31:29,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:31:29,552 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:29,552 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:31:29,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,586 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:29,588 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,589 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:29,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:29,590 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:29,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:29,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:29,597 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 16 treesize of output 12 [2021-11-19 13:31:29,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:29,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:29,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:29,603 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:29,603 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:29,607 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:29,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:31:29,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,628 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:31:29,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:31:29,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,656 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:29,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:29,661 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:29,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:29,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,664 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:29,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:29,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,695 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:29,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:29,699 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:29,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:29,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,703 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:29,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:29,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,734 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:29,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:29,738 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:29,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:29,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,742 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:29,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:29,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:29,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:29,772 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:29,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:29,777 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:30,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:30,029 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:30,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-11-19 13:31:30,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747877158] [2021-11-19 13:31:30,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:30,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:31:30,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:30,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:31:30,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-11-19 13:31:30,031 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:30,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:30,143 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2021-11-19 13:31:30,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:31:30,144 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-19 13:31:30,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:30,145 INFO L225 Difference]: With dead ends: 42 [2021-11-19 13:31:30,145 INFO L226 Difference]: Without dead ends: 25 [2021-11-19 13:31:30,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2021-11-19 13:31:30,146 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:30,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 7 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:30,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-19 13:31:30,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-19 13:31:30,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-11-19 13:31:30,152 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 21 [2021-11-19 13:31:30,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:30,152 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-19 13:31:30,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:30,152 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-11-19 13:31:30,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-19 13:31:30,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:30,153 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:30,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:30,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable224 [2021-11-19 13:31:30,354 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:30,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 844534749, now seen corresponding path program 6 times [2021-11-19 13:31:30,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:30,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704580332] [2021-11-19 13:31:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:30,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:31,405 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:31,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704580332] [2021-11-19 13:31:31,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704580332] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:31,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994420818] [2021-11-19 13:31:31,405 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:31:31,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:31,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:31,410 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:31,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 13:31:31,462 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:31:31,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:31,464 WARN L261 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-19 13:31:31,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:32,324 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 13:31:32,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:33,258 INFO L354 Elim1Store]: treesize reduction 114, result has 46.0 percent of original size [2021-11-19 13:31:33,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 53 treesize of output 108 [2021-11-19 13:31:33,582 INFO L354 Elim1Store]: treesize reduction 198, result has 6.2 percent of original size [2021-11-19 13:31:33,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 52 treesize of output 23 [2021-11-19 13:31:33,654 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 13:31:33,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994420818] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:33,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1145739749] [2021-11-19 13:31:33,657 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:33,657 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:33,657 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:33,657 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:33,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:33,665 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:33,665 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:33,667 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,668 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:33,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:33,671 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_17|], 9=[|v_#valid_19|]} [2021-11-19 13:31:33,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:33,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:33,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:33,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:33,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:33,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:33,681 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,684 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:33,712 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:33,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:33,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:33,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:33,716 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,719 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:33,721 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,722 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:33,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,726 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:33,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:33,729 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,730 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:33,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:33,731 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:33,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:33,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:33,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:33,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:33,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:33,744 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,748 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:33,752 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,752 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:31:33,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,792 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,798 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:33,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:33,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:31:33,807 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:31:33,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:31:33,814 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:33,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:33,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:33,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:33,826 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,826 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,827 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:33,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:33,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:33,831 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,832 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:33,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:33,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,835 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:33,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:31:33,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:31:33,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:31:33,841 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:31:33,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:31:33,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:33,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:33,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:33,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:33,866 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:33,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:33,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:31:33,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,880 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:33,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:33,882 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,897 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,904 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:31:33,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:31:33,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:33,909 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:31:33,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,936 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:33,938 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,939 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:33,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:33,940 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:33,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:33,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:33,946 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 16 treesize of output 12 [2021-11-19 13:31:33,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:33,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:33,948 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:33,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:33,952 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:33,952 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:33,956 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:33,957 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:31:33,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,975 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:31:33,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:31:33,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:33,996 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:33,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:34,001 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:34,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:34,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:34,005 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:34,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:34,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:34,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,033 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:34,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:34,038 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:34,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:34,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:34,042 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:34,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:34,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:34,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,075 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:34,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:34,079 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:34,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:34,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:34,082 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:34,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:34,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:34,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:34,110 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:34,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:34,116 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:34,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:34,511 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:34,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 18] total 49 [2021-11-19 13:31:34,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782042056] [2021-11-19 13:31:34,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:34,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-19 13:31:34,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:34,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-19 13:31:34,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=2685, Unknown=0, NotChecked=0, Total=2862 [2021-11-19 13:31:34,515 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 49 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 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) [2021-11-19 13:31:35,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:35,622 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2021-11-19 13:31:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 13:31:35,623 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 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 24 [2021-11-19 13:31:35,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:35,623 INFO L225 Difference]: With dead ends: 41 [2021-11-19 13:31:35,623 INFO L226 Difference]: Without dead ends: 38 [2021-11-19 13:31:35,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 33 SyntacticMatches, 8 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=252, Invalid=3654, Unknown=0, NotChecked=0, Total=3906 [2021-11-19 13:31:35,626 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:35,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 59 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 13:31:35,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-19 13:31:35,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2021-11-19 13:31:35,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 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) [2021-11-19 13:31:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-11-19 13:31:35,632 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 24 [2021-11-19 13:31:35,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:35,633 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-11-19 13:31:35,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 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) [2021-11-19 13:31:35,633 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2021-11-19 13:31:35,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 13:31:35,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:35,634 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:35,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-19 13:31:35,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:35,839 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:35,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash 247414721, now seen corresponding path program 7 times [2021-11-19 13:31:35,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:35,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861603919] [2021-11-19 13:31:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:35,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 13:31:35,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:35,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861603919] [2021-11-19 13:31:35,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861603919] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:35,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254148713] [2021-11-19 13:31:35,907 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:31:35,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:35,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:35,908 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:35,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 13:31:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:35,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 13:31:35,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 13:31:36,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:36,130 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 13:31:36,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254148713] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:36,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [905718783] [2021-11-19 13:31:36,135 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:36,135 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:36,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:36,135 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:36,136 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:36,144 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:36,145 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:36,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:36,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:36,151 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_19|], 9=[|v_#valid_21|]} [2021-11-19 13:31:36,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:36,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:36,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:36,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:36,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:36,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:36,173 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,175 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:36,202 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:36,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:36,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:36,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:36,207 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,209 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,210 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:36,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,212 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:36,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,218 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:36,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:36,220 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,221 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:36,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:36,222 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:36,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:36,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:36,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:36,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:36,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:36,238 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:36,245 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,245 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:31:36,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,279 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,284 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,287 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:36,288 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:36,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:31:36,292 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:31:36,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:31:36,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,300 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:36,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:36,304 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,309 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:36,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:36,311 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,312 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:36,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:36,314 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:36,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,317 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:36,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:36,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,319 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:36,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:31:36,330 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:31:36,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:31:36,335 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:31:36,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:31:36,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:36,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:36,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:31:36,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:36,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:36,363 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:36,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:36,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:36,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:36,375 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,400 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,407 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:31:36,410 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:31:36,411 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:36,411 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:31:36,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,439 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:36,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,442 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:36,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:36,443 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:36,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:36,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:36,449 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 16 treesize of output 12 [2021-11-19 13:31:36,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:36,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:36,451 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,453 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:36,455 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:36,455 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:36,459 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:36,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:31:36,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,478 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:31:36,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:31:36,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,513 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:36,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:36,517 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:36,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:36,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:36,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:36,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,560 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:36,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:36,564 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:36,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:36,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,568 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:36,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:36,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,604 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:36,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:36,610 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:36,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:36,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,614 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:36,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:36,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:36,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:36,659 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:36,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:36,666 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:36,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:36,905 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:36,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2021-11-19 13:31:36,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913577778] [2021-11-19 13:31:36,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:36,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 13:31:36,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 13:31:36,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-11-19 13:31:36,907 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:37,055 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2021-11-19 13:31:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:31:37,056 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-19 13:31:37,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:37,057 INFO L225 Difference]: With dead ends: 68 [2021-11-19 13:31:37,057 INFO L226 Difference]: Without dead ends: 36 [2021-11-19 13:31:37,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2021-11-19 13:31:37,058 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:37,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 13 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:37,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-19 13:31:37,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-19 13:31:37,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 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) [2021-11-19 13:31:37,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2021-11-19 13:31:37,072 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 25 [2021-11-19 13:31:37,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:37,072 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-11-19 13:31:37,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:37,073 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2021-11-19 13:31:37,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 13:31:37,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:37,074 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:37,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-19 13:31:37,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable335 [2021-11-19 13:31:37,303 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:37,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:37,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1961221684, now seen corresponding path program 8 times [2021-11-19 13:31:37,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:37,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373660722] [2021-11-19 13:31:37,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:37,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:37,395 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 13:31:37,395 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:37,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373660722] [2021-11-19 13:31:37,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373660722] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:37,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750404487] [2021-11-19 13:31:37,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:31:37,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:37,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:37,397 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:37,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 13:31:37,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-19 13:31:37,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:37,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 13:31:37,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:37,583 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 13:31:37,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:37,672 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 13:31:37,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750404487] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:37,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [656226482] [2021-11-19 13:31:37,674 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:37,675 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:37,675 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:37,675 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:37,675 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:37,680 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:37,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:37,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:37,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:37,687 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_21|], 9=[|v_#valid_23|]} [2021-11-19 13:31:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:37,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:37,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:37,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:37,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:37,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:37,697 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,700 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:37,728 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:37,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:37,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:37,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:37,733 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,736 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:37,739 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,739 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:37,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,743 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,744 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:37,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:37,746 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,747 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:31:37,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:31:37,748 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:37,751 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:31:37,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:37,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:31:37,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:37,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:37,761 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,765 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,767 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:31:37,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:31:37,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:31:37,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,802 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,806 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,809 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:37,811 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:37,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:31:37,814 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:31:37,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:31:37,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:37,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:37,825 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:37,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:37,831 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,832 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:37,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:37,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:37,839 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,840 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:37,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:37,842 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,843 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:37,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:31:37,844 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:31:37,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:31:37,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:31:37,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:31:37,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:37,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:37,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:31:37,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,880 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:37,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:37,882 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:37,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:37,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:37,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:37,894 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,910 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,917 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:31:37,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:31:37,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:37,921 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:31:37,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,958 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:37,960 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:37,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:37,963 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:37,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:37,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:37,968 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 16 treesize of output 12 [2021-11-19 13:31:37,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:37,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:37,970 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,972 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:37,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:37,974 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:37,974 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:37,977 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:37,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:31:37,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:37,996 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:31:37,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:31:38,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,016 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:38,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:38,020 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:38,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:38,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:38,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:38,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:38,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:38,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,049 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:38,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:38,053 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:38,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:38,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:38,057 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:38,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:38,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:38,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,083 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:38,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:38,087 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:38,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:38,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:38,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:38,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:38,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:38,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:38,115 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:38,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:38,120 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:38,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:38,370 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:38,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2021-11-19 13:31:38,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733501197] [2021-11-19 13:31:38,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:38,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 13:31:38,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:38,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 13:31:38,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:31:38,372 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 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) [2021-11-19 13:31:38,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:38,523 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-11-19 13:31:38,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:31:38,524 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 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) Word has length 26 [2021-11-19 13:31:38,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:38,524 INFO L225 Difference]: With dead ends: 51 [2021-11-19 13:31:38,524 INFO L226 Difference]: Without dead ends: 30 [2021-11-19 13:31:38,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2021-11-19 13:31:38,526 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:38,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 15 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:38,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-19 13:31:38,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-19 13:31:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-11-19 13:31:38,531 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 26 [2021-11-19 13:31:38,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:38,531 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-11-19 13:31:38,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 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) [2021-11-19 13:31:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-11-19 13:31:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 13:31:38,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:38,532 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:38,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:38,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:38,763 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:38,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:38,763 INFO L85 PathProgramCache]: Analyzing trace with hash 919934790, now seen corresponding path program 9 times [2021-11-19 13:31:38,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:38,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358762044] [2021-11-19 13:31:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:38,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:40,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:40,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358762044] [2021-11-19 13:31:40,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358762044] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:40,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923261139] [2021-11-19 13:31:40,204 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:31:40,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:40,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:40,207 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:40,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 13:31:40,271 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:31:40,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:40,273 WARN L261 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-19 13:31:40,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 13:31:41,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:43,013 INFO L354 Elim1Store]: treesize reduction 227, result has 43.3 percent of original size [2021-11-19 13:31:43,013 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 70 treesize of output 186 [2021-11-19 13:31:43,781 INFO L354 Elim1Store]: treesize reduction 383, result has 4.3 percent of original size [2021-11-19 13:31:43,781 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 69 treesize of output 29 [2021-11-19 13:31:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 13:31:43,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923261139] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:43,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1968040263] [2021-11-19 13:31:43,903 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:43,903 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:43,904 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:43,904 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:43,904 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:43,910 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:43,911 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:43,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:43,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:43,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:43,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:43,917 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_23|], 9=[|v_#valid_25|]} [2021-11-19 13:31:43,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:43,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:43,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:43,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:43,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:43,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:43,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:43,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:43,930 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:43,957 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:43,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:43,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:43,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:43,960 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:43,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:43,963 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:43,965 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:43,966 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:43,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,968 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:43,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,969 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:43,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:31:43,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:31:43,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:43,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,977 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:43,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:43,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:43,978 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:43,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:43,980 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:31:43,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:43,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:31:43,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:43,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:43,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:43,990 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:43,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,014 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,016 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:31:44,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:31:44,018 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:44,018 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:31:44,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,053 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,055 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:44,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:44,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,060 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,063 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:44,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:44,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:31:44,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:31:44,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:31:44,080 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,085 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:44,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:44,087 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:44,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:31:44,090 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:31:44,092 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,094 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:44,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:44,095 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,096 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:44,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:44,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:44,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:31:44,101 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:31:44,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:31:44,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:44,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:44,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:44,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:44,121 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:44,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:44,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:44,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:31:44,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:44,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:44,134 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:44,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,155 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:31:44,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:31:44,159 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:44,159 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:31:44,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,189 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:44,191 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:44,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:44,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:44,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:44,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:44,200 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 16 treesize of output 12 [2021-11-19 13:31:44,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:44,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:44,202 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:44,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,204 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:44,206 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:44,207 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:44,214 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:44,215 INFO L185 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-11-19 13:31:44,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,233 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.3 percent of original size [2021-11-19 13:31:44,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-19 13:31:44,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,255 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:44,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:44,260 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:44,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:44,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,274 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:44,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:44,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,318 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:44,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:44,322 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:44,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:44,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,327 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:44,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:44,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,360 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:44,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:44,365 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:44,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:44,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:44,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:44,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:44,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:44,403 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:44,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:44,409 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:45,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:45,023 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:45,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 22] total 59 [2021-11-19 13:31:45,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898950131] [2021-11-19 13:31:45,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:45,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-19 13:31:45,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:45,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-19 13:31:45,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=3837, Unknown=0, NotChecked=0, Total=4032 [2021-11-19 13:31:45,027 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 59 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 59 states have internal predecessors, (71), 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) [2021-11-19 13:31:47,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:47,063 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2021-11-19 13:31:47,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-19 13:31:47,063 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 59 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-19 13:31:47,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:47,064 INFO L225 Difference]: With dead ends: 49 [2021-11-19 13:31:47,064 INFO L226 Difference]: Without dead ends: 46 [2021-11-19 13:31:47,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 41 SyntacticMatches, 10 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1619 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=343, Invalid=5977, Unknown=0, NotChecked=0, Total=6320 [2021-11-19 13:31:47,067 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:47,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 75 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 13:31:47,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-19 13:31:47,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2021-11-19 13:31:47,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 41 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) [2021-11-19 13:31:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-11-19 13:31:47,076 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 29 [2021-11-19 13:31:47,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:47,076 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-11-19 13:31:47,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 59 states have internal predecessors, (71), 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) [2021-11-19 13:31:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-11-19 13:31:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 13:31:47,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:47,078 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:47,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:47,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable446 [2021-11-19 13:31:47,287 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:47,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:47,287 INFO L85 PathProgramCache]: Analyzing trace with hash -234145888, now seen corresponding path program 10 times [2021-11-19 13:31:47,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:47,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720369109] [2021-11-19 13:31:47,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:47,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:47,398 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 13:31:47,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:47,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720369109] [2021-11-19 13:31:47,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720369109] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:47,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227018028] [2021-11-19 13:31:47,399 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:31:47,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:47,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:47,400 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:47,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 13:31:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:47,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 13:31:47,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 13:31:47,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:47,653 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 13:31:47,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227018028] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:47,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1119885916] [2021-11-19 13:31:47,655 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:47,656 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:47,656 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:47,656 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:47,656 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:47,671 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:47,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:47,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:47,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:47,675 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_25|], 9=[|v_#valid_27|]} [2021-11-19 13:31:47,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:47,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:47,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:47,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:47,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:47,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:47,684 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,695 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:47,720 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:47,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:47,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:47,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:47,723 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,725 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:47,726 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,727 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:47,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,729 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,755 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:47,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:47,757 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,758 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:31:47,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:31:47,760 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:47,762 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:31:47,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:47,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:31:47,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:47,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:31:47,772 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,776 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:31:47,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:31:47,777 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,777 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:31:47,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,807 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,810 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:47,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:47,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:31:47,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:31:47,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:31:47,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:47,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:47,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,831 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:47,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:47,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,835 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:31:47,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:31:47,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:31:47,839 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,840 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:47,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:47,842 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,843 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:47,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:47,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:47,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:31:47,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:31:47,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:31:47,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:47,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:47,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:47,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:47,870 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:47,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:47,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:31:47,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:47,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:31:47,891 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,910 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,917 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:31:47,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:31:47,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:47,921 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:31:47,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,952 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:47,953 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:47,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:47,956 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:47,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:47,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:47,962 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 16 treesize of output 12 [2021-11-19 13:31:47,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:47,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:47,964 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,965 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:47,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:47,967 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:47,968 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:47,971 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:47,972 INFO L185 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-11-19 13:31:47,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,987 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.3 percent of original size [2021-11-19 13:31:47,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-19 13:31:47,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:47,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,005 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:48,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:48,009 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:48,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:48,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:48,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:48,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:48,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:48,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,038 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:48,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:48,042 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:48,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:48,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:48,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:48,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:48,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:48,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,069 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:48,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:48,073 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:48,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:48,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:48,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:48,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:48,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:48,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:48,104 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:48,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:48,108 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:48,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:48,339 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:48,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 19 [2021-11-19 13:31:48,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640948554] [2021-11-19 13:31:48,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:48,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-19 13:31:48,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-19 13:31:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-11-19 13:31:48,341 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:48,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:48,495 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2021-11-19 13:31:48,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 13:31:48,496 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-19 13:31:48,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:48,497 INFO L225 Difference]: With dead ends: 82 [2021-11-19 13:31:48,497 INFO L226 Difference]: Without dead ends: 43 [2021-11-19 13:31:48,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=650, Unknown=0, NotChecked=0, Total=812 [2021-11-19 13:31:48,498 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:48,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:48,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-19 13:31:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-19 13:31:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 42 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2021-11-19 13:31:48,507 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 30 [2021-11-19 13:31:48,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:48,507 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2021-11-19 13:31:48,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2021-11-19 13:31:48,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 13:31:48,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:48,509 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:48,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:48,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:48,727 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash -671947659, now seen corresponding path program 11 times [2021-11-19 13:31:48,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:48,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721099100] [2021-11-19 13:31:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:48,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 13:31:48,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:48,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721099100] [2021-11-19 13:31:48,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721099100] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:48,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249719384] [2021-11-19 13:31:48,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:31:48,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:48,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:48,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:48,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 13:31:48,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-19 13:31:48,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:48,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 13:31:48,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:49,055 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 13:31:49,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:49,136 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 13:31:49,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249719384] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:49,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1864668085] [2021-11-19 13:31:49,139 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:49,139 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:49,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:49,139 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:49,140 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:49,145 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:49,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:49,147 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:49,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:49,152 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_27|], 9=[|v_#valid_29|]} [2021-11-19 13:31:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:49,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:49,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:49,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:49,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:49,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:49,161 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:49,188 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:49,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:49,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:49,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:49,192 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,194 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:49,195 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,195 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:49,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,199 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:49,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:49,211 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,212 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:49,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:49,214 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:49,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:49,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:49,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:49,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:49,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:49,227 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,230 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:49,234 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,234 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:31:49,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,264 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,279 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:49,280 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:49,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:31:49,284 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:31:49,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:31:49,290 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,291 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:49,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:49,297 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,301 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,302 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:49,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:49,304 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:49,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:31:49,307 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:31:49,309 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:49,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:49,311 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,312 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:49,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:49,314 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:49,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:31:49,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:31:49,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:31:49,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:49,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:49,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:49,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:49,346 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:49,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:49,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:31:49,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:49,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:49,362 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,375 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,383 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:31:49,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:31:49,391 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:49,391 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:31:49,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,420 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:49,422 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,424 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:49,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:49,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:49,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:49,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:49,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-19 13:31:49,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:49,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:49,438 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,439 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:49,442 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:49,442 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:49,445 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:49,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:31:49,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,463 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:31:49,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:31:49,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,481 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:49,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:49,485 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:49,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:49,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:49,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:49,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,514 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:49,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:49,518 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:49,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:49,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:49,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:49,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,546 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:49,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:49,550 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:49,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:49,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:49,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:49,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:49,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:49,596 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:49,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:49,602 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:49,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:49,802 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:49,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2021-11-19 13:31:49,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661283884] [2021-11-19 13:31:49,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:49,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-19 13:31:49,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:49,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-19 13:31:49,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2021-11-19 13:31:49,804 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 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) [2021-11-19 13:31:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:31:49,964 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2021-11-19 13:31:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 13:31:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 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 31 [2021-11-19 13:31:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:31:49,966 INFO L225 Difference]: With dead ends: 60 [2021-11-19 13:31:49,966 INFO L226 Difference]: Without dead ends: 35 [2021-11-19 13:31:49,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2021-11-19 13:31:49,967 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:31:49,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 15 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:31:49,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-19 13:31:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-19 13:31:49,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:31:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-11-19 13:31:49,974 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 31 [2021-11-19 13:31:49,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:31:49,974 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-11-19 13:31:49,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 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) [2021-11-19 13:31:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-11-19 13:31:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-19 13:31:49,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:31:49,975 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:31:50,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:31:50,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable558 [2021-11-19 13:31:50,191 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:31:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:31:50,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1768952445, now seen corresponding path program 12 times [2021-11-19 13:31:50,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:31:50,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444215126] [2021-11-19 13:31:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:31:50,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:31:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:31:51,927 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:31:51,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:31:51,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444215126] [2021-11-19 13:31:51,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444215126] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:31:51,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366278505] [2021-11-19 13:31:51,928 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:31:51,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:31:51,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:31:51,929 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:31:51,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-19 13:31:51,985 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:31:51,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:31:51,987 WARN L261 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-19 13:31:51,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:31:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 13:31:53,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:31:56,096 INFO L354 Elim1Store]: treesize reduction 378, result has 41.8 percent of original size [2021-11-19 13:31:56,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 87 treesize of output 286 [2021-11-19 13:31:57,874 INFO L354 Elim1Store]: treesize reduction 628, result has 3.2 percent of original size [2021-11-19 13:31:57,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 86 treesize of output 35 [2021-11-19 13:31:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 13:31:57,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366278505] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:31:57,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [99313646] [2021-11-19 13:31:57,976 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:31:57,977 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:31:57,977 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:31:57,977 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:31:57,978 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:31:57,989 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:31:57,989 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:57,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:57,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:31:57,990 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:57,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:57,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:57,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:31:57,996 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_29|], 9=[|v_#valid_31|]} [2021-11-19 13:31:58,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:58,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:58,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:58,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:31:58,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:58,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:31:58,006 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,007 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:58,054 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:31:58,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:31:58,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:58,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:31:58,057 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:31:58,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,062 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:31:58,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,070 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,083 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:58,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:58,086 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,087 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:58,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:58,089 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:58,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:58,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:58,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:58,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:58,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:58,106 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,110 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:31:58,114 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,114 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:31:58,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,148 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,149 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:58,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:58,151 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,157 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,160 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:58,162 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:58,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:31:58,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:31:58,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:31:58,177 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,181 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,183 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,184 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:58,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:58,185 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,186 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:31:58,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:31:58,189 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:31:58,191 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:58,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:31:58,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,196 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:31:58,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:31:58,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:31:58,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:31:58,203 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:31:58,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:31:58,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:58,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:31:58,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:58,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:31:58,231 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:58,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:31:58,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:31:58,246 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:58,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:31:58,249 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,263 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,272 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:31:58,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:31:58,276 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:31:58,277 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:31:58,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,302 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:31:58,304 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:31:58,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:31:58,307 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:31:58,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:31:58,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:58,313 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 16 treesize of output 12 [2021-11-19 13:31:58,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:58,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:31:58,316 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,317 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:31:58,320 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:31:58,320 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:31:58,324 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:31:58,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:31:58,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,344 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:31:58,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:31:58,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,366 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:58,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:58,370 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:58,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:58,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,374 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:58,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:58,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,405 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:58,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:58,410 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:58,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:58,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,414 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:31:58,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:31:58,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,450 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:58,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:58,454 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:31:58,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:31:58,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:31:58,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:31:58,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:31:58,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:31:58,481 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:31:58,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:31:58,487 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:31:59,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:31:59,286 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:31:59,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 26, 26] total 75 [2021-11-19 13:31:59,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907825172] [2021-11-19 13:31:59,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:31:59,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-11-19 13:31:59,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:31:59,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-11-19 13:31:59,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=6043, Unknown=0, NotChecked=0, Total=6320 [2021-11-19 13:31:59,289 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 75 states, 75 states have (on average 1.16) internal successors, (87), 75 states have internal predecessors, (87), 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) [2021-11-19 13:32:02,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:02,139 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2021-11-19 13:32:02,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-19 13:32:02,139 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 1.16) internal successors, (87), 75 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-19 13:32:02,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:02,140 INFO L225 Difference]: With dead ends: 57 [2021-11-19 13:32:02,140 INFO L226 Difference]: Without dead ends: 54 [2021-11-19 13:32:02,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 47 SyntacticMatches, 8 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2689 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=469, Invalid=9233, Unknown=0, NotChecked=0, Total=9702 [2021-11-19 13:32:02,143 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:02,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 85 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-19 13:32:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-19 13:32:02,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-11-19 13:32:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 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) [2021-11-19 13:32:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2021-11-19 13:32:02,153 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 34 [2021-11-19 13:32:02,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:02,153 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2021-11-19 13:32:02,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 1.16) internal successors, (87), 75 states have internal predecessors, (87), 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) [2021-11-19 13:32:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2021-11-19 13:32:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-19 13:32:02,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:02,155 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:02,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-19 13:32:02,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable613 [2021-11-19 13:32:02,367 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:02,367 INFO L85 PathProgramCache]: Analyzing trace with hash 875301153, now seen corresponding path program 13 times [2021-11-19 13:32:02,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:02,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176388847] [2021-11-19 13:32:02,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:02,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:32:02,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:02,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176388847] [2021-11-19 13:32:02,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176388847] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:02,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565589505] [2021-11-19 13:32:02,474 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:32:02,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:02,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:02,475 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:02,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 13:32:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:02,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 13:32:02,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:32:02,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:32:02,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565589505] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:02,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1288582550] [2021-11-19 13:32:02,879 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:32:02,880 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:32:02,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:32:02,880 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:32:02,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:32:02,887 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:32:02,888 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:02,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:02,890 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:02,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:32:02,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:32:02,894 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_31|], 9=[|v_#valid_33|]} [2021-11-19 13:32:02,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:02,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:02,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:02,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:32:02,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:02,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:02,910 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:02,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:02,913 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:02,943 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:32:02,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:32:02,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:02,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:02,948 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:02,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:02,951 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:32:02,953 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:02,954 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:32:02,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,958 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:02,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:02,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:02,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:02,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:02,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,962 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:02,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:02,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:02,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:02,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:02,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:02,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:02,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:02,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:02,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:02,978 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:02,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:02,981 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:02,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:02,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:02,986 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:32:02,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:02,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,024 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:03,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:03,026 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,031 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,034 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:03,035 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:03,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:32:03,038 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:32:03,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:32:03,044 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,046 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,047 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:03,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:03,049 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,050 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:03,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:03,053 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:03,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:03,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:03,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:03,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:32:03,063 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:32:03,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:32:03,068 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:32:03,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:32:03,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:03,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:03,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:32:03,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:03,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:03,107 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:03,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:03,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:03,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:03,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:03,125 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:03,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,148 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:32:03,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:32:03,153 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:32:03,154 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:32:03,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,191 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:32:03,193 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,195 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:32:03,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:32:03,196 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:03,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:03,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:03,206 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 16 treesize of output 12 [2021-11-19 13:32:03,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:03,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:03,209 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:03,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:03,213 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:03,213 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:32:03,217 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:32:03,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:32:03,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,236 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:32:03,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:32:03,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,262 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:03,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:03,266 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:03,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:03,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:03,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:03,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,294 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:03,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:03,298 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:03,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:03,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:03,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:03,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,334 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:03,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:03,337 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:03,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:03,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:03,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:03,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:03,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:03,365 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:03,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:03,370 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:32:03,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:32:03,689 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:32:03,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 22 [2021-11-19 13:32:03,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958279769] [2021-11-19 13:32:03,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:32:03,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-19 13:32:03,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:32:03,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-19 13:32:03,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2021-11-19 13:32:03,691 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:32:03,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:03,880 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2021-11-19 13:32:03,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 13:32:03,881 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-19 13:32:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:03,882 INFO L225 Difference]: With dead ends: 96 [2021-11-19 13:32:03,882 INFO L226 Difference]: Without dead ends: 50 [2021-11-19 13:32:03,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=845, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 13:32:03,884 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:03,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 17 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:32:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-19 13:32:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-19 13:32:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.163265306122449) internal successors, (57), 49 states have internal predecessors, (57), 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) [2021-11-19 13:32:03,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2021-11-19 13:32:03,891 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 35 [2021-11-19 13:32:03,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:03,892 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-11-19 13:32:03,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:32:03,892 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2021-11-19 13:32:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-19 13:32:03,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:03,893 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:03,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:04,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:04,111 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:04,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:04,111 INFO L85 PathProgramCache]: Analyzing trace with hash -743958164, now seen corresponding path program 14 times [2021-11-19 13:32:04,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:04,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038614686] [2021-11-19 13:32:04,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:04,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-19 13:32:04,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:04,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038614686] [2021-11-19 13:32:04,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038614686] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:04,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760398888] [2021-11-19 13:32:04,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:32:04,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:04,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:04,228 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:04,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-19 13:32:04,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-19 13:32:04,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:32:04,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 13:32:04,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-19 13:32:04,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:04,573 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-19 13:32:04,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760398888] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:04,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [64193455] [2021-11-19 13:32:04,575 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:32:04,575 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:32:04,576 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:32:04,576 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:32:04,576 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:32:04,585 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:32:04,586 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:04,587 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:32:04,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:32:04,592 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_33|], 9=[|v_#valid_35|]} [2021-11-19 13:32:04,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:04,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:04,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:04,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:32:04,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:04,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:04,610 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,612 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:04,646 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:32:04,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:32:04,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:04,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:04,651 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,654 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:32:04,666 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,666 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:32:04,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,671 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:04,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:04,674 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:04,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:04,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:04,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:04,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:04,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:04,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:04,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:04,692 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,695 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:04,700 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,700 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:32:04,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,734 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,743 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,746 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:04,749 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:04,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:32:04,753 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:32:04,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:32:04,760 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,762 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:04,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:04,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,770 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,771 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:04,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:04,773 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,775 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:04,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:04,777 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:04,779 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,780 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:04,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:04,782 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,783 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:04,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:32:04,786 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:32:04,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:32:04,790 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:32:04,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:32:04,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:04,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:04,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:32:04,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:04,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:04,825 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:04,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:04,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:04,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:04,842 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,857 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,866 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:32:04,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:32:04,871 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:32:04,871 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:32:04,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,899 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:32:04,902 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,903 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:32:04,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:32:04,904 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:04,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:04,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:04,910 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 16 treesize of output 12 [2021-11-19 13:32:04,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:04,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:04,912 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,913 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:04,915 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:04,915 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:32:04,919 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:32:04,920 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:32:04,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,935 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:32:04,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:32:04,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,956 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:04,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:04,960 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:04,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:04,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,964 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:04,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:04,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,988 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:04,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:04,991 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:04,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:04,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:04,995 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:04,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:04,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:05,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:05,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,020 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:05,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:05,024 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:05,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:05,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:05,027 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:05,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:05,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:05,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:05,057 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:05,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:05,063 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:32:05,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:32:05,352 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:32:05,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2021-11-19 13:32:05,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265246553] [2021-11-19 13:32:05,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:32:05,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-19 13:32:05,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:32:05,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-19 13:32:05,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2021-11-19 13:32:05,354 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:32:05,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:05,543 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2021-11-19 13:32:05,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 13:32:05,544 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-19 13:32:05,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:05,544 INFO L225 Difference]: With dead ends: 69 [2021-11-19 13:32:05,545 INFO L226 Difference]: Without dead ends: 40 [2021-11-19 13:32:05,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=276, Invalid=914, Unknown=0, NotChecked=0, Total=1190 [2021-11-19 13:32:05,546 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 51 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:05,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 9 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:32:05,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-19 13:32:05,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-19 13:32:05,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 39 states have internal predecessors, (44), 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) [2021-11-19 13:32:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-11-19 13:32:05,554 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 36 [2021-11-19 13:32:05,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:05,554 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-11-19 13:32:05,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 23 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:32:05,554 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-11-19 13:32:05,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 13:32:05,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:05,555 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:05,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-19 13:32:05,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable723 [2021-11-19 13:32:05,767 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:05,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:05,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1584221402, now seen corresponding path program 15 times [2021-11-19 13:32:05,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:05,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66089394] [2021-11-19 13:32:05,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:05,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:08,150 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:32:08,150 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:08,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66089394] [2021-11-19 13:32:08,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66089394] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:08,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163273975] [2021-11-19 13:32:08,151 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:32:08,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:08,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:08,152 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:08,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-19 13:32:08,208 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:32:08,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:32:08,210 WARN L261 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 103 conjunts are in the unsatisfiable core [2021-11-19 13:32:08,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:10,449 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 13:32:10,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:14,065 INFO L354 Elim1Store]: treesize reduction 567, result has 40.8 percent of original size [2021-11-19 13:32:14,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 104 treesize of output 408 [2021-11-19 13:32:17,656 INFO L354 Elim1Store]: treesize reduction 933, result has 2.6 percent of original size [2021-11-19 13:32:17,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 103 treesize of output 41 [2021-11-19 13:32:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 13:32:17,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163273975] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:17,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1343257724] [2021-11-19 13:32:17,758 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:32:17,758 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:32:17,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:32:17,759 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:32:17,759 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:32:17,764 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:32:17,765 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:32:17,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:17,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:32:17,773 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_35|], 9=[|v_#valid_37|]} [2021-11-19 13:32:17,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:17,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:17,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:17,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:32:17,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:17,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:17,781 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:17,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:17,807 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:32:17,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:32:17,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:17,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:17,810 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:17,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,812 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:32:17,813 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:17,814 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:32:17,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,817 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,818 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:17,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:17,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:17,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:17,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:17,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:17,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:17,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:17,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:17,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:17,839 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:17,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,841 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:17,844 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:17,844 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:32:17,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,870 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:17,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:17,871 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,874 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,876 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:17,877 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,877 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:17,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:32:17,879 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:32:17,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:32:17,884 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,886 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,886 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:17,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:17,888 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,888 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:17,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:32:17,889 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:32:17,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:17,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:17,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:17,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:17,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:17,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:32:17,901 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:17,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:32:17,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:32:17,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:17,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:17,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:17,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:17,920 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:17,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:17,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:17,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:32:17,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:17,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:17,945 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:17,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,959 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:17,968 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:32:17,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:32:17,973 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:32:17,973 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:32:17,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:17,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,003 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:32:18,005 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:18,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,006 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:18,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:32:18,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:32:18,008 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:18,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:18,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:18,014 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 16 treesize of output 12 [2021-11-19 13:32:18,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:18,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:18,016 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:18,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:18,020 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:18,020 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:32:18,024 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:32:18,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:32:18,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,045 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:32:18,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:32:18,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,068 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:18,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:18,073 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:18,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:18,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,077 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:18,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:18,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,104 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:18,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:18,107 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:18,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:18,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:18,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:18,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,136 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:18,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:18,140 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:18,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:18,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:18,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:18,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:18,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:18,168 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:18,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:18,173 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:32:18,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:32:18,831 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:32:18,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 30, 30] total 83 [2021-11-19 13:32:18,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478324971] [2021-11-19 13:32:18,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:32:18,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2021-11-19 13:32:18,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:32:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-11-19 13:32:18,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=7340, Unknown=0, NotChecked=0, Total=7656 [2021-11-19 13:32:18,834 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 83 states, 83 states have (on average 1.144578313253012) internal successors, (95), 83 states have internal predecessors, (95), 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) [2021-11-19 13:32:22,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:22,858 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2021-11-19 13:32:22,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-19 13:32:22,858 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 1.144578313253012) internal successors, (95), 83 states have internal predecessors, (95), 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 39 [2021-11-19 13:32:22,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:22,859 INFO L225 Difference]: With dead ends: 65 [2021-11-19 13:32:22,859 INFO L226 Difference]: Without dead ends: 62 [2021-11-19 13:32:22,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 55 SyntacticMatches, 12 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3352 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=568, Invalid=11642, Unknown=0, NotChecked=0, Total=12210 [2021-11-19 13:32:22,863 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:22,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 107 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2144 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 13:32:22,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-19 13:32:22,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2021-11-19 13:32:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:32:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2021-11-19 13:32:22,875 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 39 [2021-11-19 13:32:22,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:22,875 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2021-11-19 13:32:22,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 1.144578313253012) internal successors, (95), 83 states have internal predecessors, (95), 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) [2021-11-19 13:32:22,876 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2021-11-19 13:32:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-19 13:32:22,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:22,877 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:22,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:23,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable778 [2021-11-19 13:32:23,091 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:23,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:23,091 INFO L85 PathProgramCache]: Analyzing trace with hash 722707136, now seen corresponding path program 16 times [2021-11-19 13:32:23,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:23,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350096812] [2021-11-19 13:32:23,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:23,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-19 13:32:23,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:23,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350096812] [2021-11-19 13:32:23,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350096812] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:23,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147281749] [2021-11-19 13:32:23,241 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:32:23,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:23,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:23,243 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:23,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-19 13:32:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:23,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 13:32:23,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-19 13:32:23,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:23,552 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-19 13:32:23,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147281749] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:23,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1612777091] [2021-11-19 13:32:23,554 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:32:23,554 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:32:23,554 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:32:23,554 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:32:23,555 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:32:23,571 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:32:23,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:32:23,574 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:23,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:32:23,577 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_37|], 9=[|v_#valid_39|]} [2021-11-19 13:32:23,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:23,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:23,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:23,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:32:23,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:23,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:23,591 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,594 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:23,622 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:32:23,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:32:23,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:23,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:23,626 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,629 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:32:23,631 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,631 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:32:23,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,635 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,636 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:23,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:23,638 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,639 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:23,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:23,640 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,641 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:23,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:23,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:23,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:23,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:23,652 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,655 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:23,659 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,659 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:32:23,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,688 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,693 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,695 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:23,697 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:23,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:32:23,701 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:32:23,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:32:23,707 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,708 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:23,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:23,712 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,716 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:23,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:23,719 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:23,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:32:23,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:32:23,723 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,724 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,725 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:23,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:23,726 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:23,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:23,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:23,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:32:23,732 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:32:23,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:32:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:23,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:23,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:23,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:23,755 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:23,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:32:23,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:23,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:23,771 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,784 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,790 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:32:23,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:32:23,794 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:32:23,794 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:32:23,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,817 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:32:23,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:32:23,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:32:23,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:23,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:23,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:23,826 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 16 treesize of output 12 [2021-11-19 13:32:23,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:23,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:23,828 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:23,852 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:23,852 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:32:23,855 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:32:23,856 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:32:23,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,871 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:32:23,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:32:23,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,892 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:23,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:23,896 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:23,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:23,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,899 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:23,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:23,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,923 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:23,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:23,926 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:23,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:23,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,929 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:23,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:23,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,952 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:23,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:23,956 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:23,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:23,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,964 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:23,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:23,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:23,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:23,989 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:23,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:23,996 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:32:24,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:32:24,260 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:32:24,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 25 [2021-11-19 13:32:24,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037440687] [2021-11-19 13:32:24,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:32:24,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 13:32:24,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:32:24,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 13:32:24,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=696, Unknown=0, NotChecked=0, Total=870 [2021-11-19 13:32:24,262 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 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) [2021-11-19 13:32:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:24,475 INFO L93 Difference]: Finished difference Result 110 states and 124 transitions. [2021-11-19 13:32:24,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 13:32:24,476 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 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 40 [2021-11-19 13:32:24,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:24,476 INFO L225 Difference]: With dead ends: 110 [2021-11-19 13:32:24,477 INFO L226 Difference]: Without dead ends: 57 [2021-11-19 13:32:24,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=267, Invalid=1065, Unknown=0, NotChecked=0, Total=1332 [2021-11-19 13:32:24,477 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:24,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 15 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:32:24,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-19 13:32:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-19 13:32:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:32:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2021-11-19 13:32:24,488 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 40 [2021-11-19 13:32:24,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:24,489 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2021-11-19 13:32:24,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 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) [2021-11-19 13:32:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2021-11-19 13:32:24,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 13:32:24,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:24,490 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:24,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:24,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable833 [2021-11-19 13:32:24,695 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:24,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:24,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1499657899, now seen corresponding path program 17 times [2021-11-19 13:32:24,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:24,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218801632] [2021-11-19 13:32:24,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:24,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:24,841 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 15 proven. 34 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-19 13:32:24,841 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:24,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218801632] [2021-11-19 13:32:24,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218801632] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:24,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583900889] [2021-11-19 13:32:24,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:32:24,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:24,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:24,847 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:24,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-19 13:32:24,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-19 13:32:24,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:32:24,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 13:32:24,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:25,129 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-19 13:32:25,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-19 13:32:25,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583900889] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:25,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [338483938] [2021-11-19 13:32:25,227 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:32:25,228 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:32:25,228 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:32:25,228 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:32:25,228 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:32:25,238 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:32:25,238 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:25,240 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:32:25,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:32:25,243 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_39|], 9=[|v_#valid_41|]} [2021-11-19 13:32:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:25,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:25,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:25,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:32:25,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:25,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:25,254 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,256 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:25,282 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:32:25,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:32:25,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:25,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:25,285 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,287 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:32:25,288 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,289 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:32:25,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,291 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,292 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:25,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:25,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:32:25,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:32:25,294 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:25,302 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:32:25,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:25,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:32:25,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:32:25,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:32:25,311 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,313 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,314 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:32:25,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:32:25,315 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,315 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:32:25,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,335 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,337 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,339 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:25,340 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:32:25,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:32:25,358 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:32:25,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:32:25,363 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,364 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:25,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:25,368 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,371 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,372 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:25,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:25,374 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:25,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:25,376 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:25,378 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,379 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:25,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:25,381 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:32:25,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:32:25,384 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:32:25,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:32:25,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:32:25,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:32:25,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:25,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:25,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:32:25,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:32:25,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:32:25,416 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:25,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:25,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:25,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:25,429 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,442 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,447 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:32:25,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:32:25,451 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:32:25,451 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:32:25,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,477 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:32:25,478 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,479 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:32:25,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:32:25,481 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:25,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:25,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:25,486 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 16 treesize of output 12 [2021-11-19 13:32:25,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:25,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:25,488 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:25,492 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:25,492 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:32:25,495 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:32:25,496 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:32:25,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,511 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:32:25,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:32:25,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,529 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:25,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:25,532 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:25,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:25,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:25,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:25,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,559 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:25,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:25,562 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:25,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:25,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:25,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:25,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,589 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:25,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:25,593 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:25,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:25,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,596 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:25,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:25,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:25,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:25,620 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:25,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:25,625 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:32:25,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:32:25,843 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:32:25,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 26 [2021-11-19 13:32:25,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754350427] [2021-11-19 13:32:25,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:32:25,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-19 13:32:25,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:32:25,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-19 13:32:25,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=747, Unknown=0, NotChecked=0, Total=930 [2021-11-19 13:32:25,845 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 26 states have internal predecessors, (47), 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) [2021-11-19 13:32:26,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:26,050 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-11-19 13:32:26,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 13:32:26,051 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 26 states have internal predecessors, (47), 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 41 [2021-11-19 13:32:26,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:26,051 INFO L225 Difference]: With dead ends: 78 [2021-11-19 13:32:26,051 INFO L226 Difference]: Without dead ends: 45 [2021-11-19 13:32:26,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 13:32:26,052 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 37 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:26,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 19 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:32:26,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-19 13:32:26,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-19 13:32:26,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:32:26,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-11-19 13:32:26,061 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 41 [2021-11-19 13:32:26,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:26,061 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-11-19 13:32:26,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 26 states have internal predecessors, (47), 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) [2021-11-19 13:32:26,062 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-11-19 13:32:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 13:32:26,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:26,062 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:26,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:26,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable888 [2021-11-19 13:32:26,275 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1455167203, now seen corresponding path program 18 times [2021-11-19 13:32:26,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:26,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904598030] [2021-11-19 13:32:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:26,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 3 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:32:28,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:28,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904598030] [2021-11-19 13:32:28,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904598030] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:28,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762894330] [2021-11-19 13:32:28,684 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:32:28,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:28,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:28,684 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:28,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-19 13:32:28,742 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:32:28,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:32:28,744 WARN L261 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 119 conjunts are in the unsatisfiable core [2021-11-19 13:32:28,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:30,851 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 13:32:30,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:35,483 INFO L354 Elim1Store]: treesize reduction 794, result has 40.2 percent of original size [2021-11-19 13:32:35,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 120 treesize of output 551 [2021-11-19 13:32:42,449 INFO L354 Elim1Store]: treesize reduction 1298, result has 2.2 percent of original size [2021-11-19 13:32:42,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 121 treesize of output 48 [2021-11-19 13:32:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 13:32:42,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762894330] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:42,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [969357840] [2021-11-19 13:32:42,560 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:32:42,560 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:32:42,560 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:32:42,561 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:32:42,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:32:42,564 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:32:42,564 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:32:42,565 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:42,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:32:42,570 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_41|], 9=[|v_#valid_43|]} [2021-11-19 13:32:42,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:42,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:42,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:42,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:32:42,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:42,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:42,581 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,583 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:42,607 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:32:42,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:32:42,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:42,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:42,610 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,612 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:32:42,613 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,614 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:32:42,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,617 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,617 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:42,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:42,618 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,619 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:42,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:42,620 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:42,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:42,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:42,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:42,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:42,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:42,629 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,631 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:42,633 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,633 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:32:42,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,659 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,663 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,666 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:42,667 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,668 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:42,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:32:42,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:32:42,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:32:42,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,674 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:42,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:42,676 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,679 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:42,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:42,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:42,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:32:42,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:32:42,683 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,683 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:42,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:42,684 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:42,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:42,686 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:42,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:32:42,688 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:32:42,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:32:42,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:42,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:42,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:42,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:42,719 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:42,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:42,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:32:42,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:42,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:42,734 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,747 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,754 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:32:42,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:32:42,757 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:32:42,758 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:32:42,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,780 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:32:42,782 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,783 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:32:42,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:32:42,784 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:42,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:42,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:42,790 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 16 treesize of output 12 [2021-11-19 13:32:42,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:42,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:42,791 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,793 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:42,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:42,795 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:32:42,798 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:32:42,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:32:42,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,814 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:32:42,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:32:42,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,831 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:42,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:42,835 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:42,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:42,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:42,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:42,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,860 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:42,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:42,864 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:42,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:42,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,867 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:42,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:42,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,889 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:42,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:42,893 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:42,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:42,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,896 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:42,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:42,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:42,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:42,928 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:42,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:42,933 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:32:43,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:32:43,612 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:32:43,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 34, 34] total 90 [2021-11-19 13:32:43,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984596194] [2021-11-19 13:32:43,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:32:43,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2021-11-19 13:32:43,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:32:43,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-11-19 13:32:43,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=8587, Unknown=0, NotChecked=0, Total=8930 [2021-11-19 13:32:43,614 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 90 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 90 states have internal predecessors, (101), 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) [2021-11-19 13:32:48,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:48,614 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2021-11-19 13:32:48,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-19 13:32:48,614 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 90 states have internal predecessors, (101), 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 44 [2021-11-19 13:32:48,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:48,615 INFO L225 Difference]: With dead ends: 73 [2021-11-19 13:32:48,615 INFO L226 Difference]: Without dead ends: 70 [2021-11-19 13:32:48,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 65 SyntacticMatches, 15 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3986 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=660, Invalid=14102, Unknown=0, NotChecked=0, Total=14762 [2021-11-19 13:32:48,616 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:48,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 115 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-19 13:32:48,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-19 13:32:48,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2021-11-19 13:32:48,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.1290322580645162) internal successors, (70), 62 states have internal predecessors, (70), 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) [2021-11-19 13:32:48,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2021-11-19 13:32:48,628 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 44 [2021-11-19 13:32:48,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:48,628 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2021-11-19 13:32:48,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 90 states have internal predecessors, (101), 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) [2021-11-19 13:32:48,628 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2021-11-19 13:32:48,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 13:32:48,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:48,629 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:48,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:48,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable944,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:48,830 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:48,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:48,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1118766463, now seen corresponding path program 19 times [2021-11-19 13:32:48,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:48,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967379104] [2021-11-19 13:32:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:48,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 29 proven. 35 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-19 13:32:49,008 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:49,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967379104] [2021-11-19 13:32:49,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967379104] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:49,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278552136] [2021-11-19 13:32:49,008 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:32:49,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:49,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:49,011 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:49,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-19 13:32:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:49,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:32:49,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-19 13:32:49,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-19 13:32:49,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278552136] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:49,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [870339861] [2021-11-19 13:32:49,441 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:32:49,441 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:32:49,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:32:49,442 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:32:49,442 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:32:49,449 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:32:49,449 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:49,450 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:32:49,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:32:49,453 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_43|], 9=[|v_#valid_45|]} [2021-11-19 13:32:49,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:49,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:49,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:49,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:32:49,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:49,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:49,461 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,462 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:49,488 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:32:49,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:32:49,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:49,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:49,490 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,492 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:32:49,494 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,494 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:32:49,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:49,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:49,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:49,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:49,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:49,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:49,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:49,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:49,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:49,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:49,508 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,511 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:32:49,513 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,513 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:32:49,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,534 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,535 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:49,536 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:49,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:32:49,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:32:49,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:32:49,542 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:49,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:49,546 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,548 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,548 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:49,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:49,549 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,550 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:49,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:49,551 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:49,552 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,553 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:49,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:49,554 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,554 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:32:49,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:32:49,555 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:32:49,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:32:49,558 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:32:49,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:32:49,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:49,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:49,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:32:49,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:49,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:32:49,578 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:49,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:49,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:49,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:49,588 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,597 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,600 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:32:49,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:32:49,602 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:32:49,602 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:32:49,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,620 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:32:49,622 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,622 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:32:49,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:32:49,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:49,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:49,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:49,630 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 16 treesize of output 12 [2021-11-19 13:32:49,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:49,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:49,631 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:49,635 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:49,635 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:32:49,638 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:32:49,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:32:49,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,654 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:32:49,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:32:49,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,671 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:49,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:49,675 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:49,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:49,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:49,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:49,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,702 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:49,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:49,706 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:49,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:49,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,709 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:49,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:49,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,732 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:49,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:49,736 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:49,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:49,738 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,739 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:32:49,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:49,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:32:49,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:49,761 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:49,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:49,766 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:32:50,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:32:50,015 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:32:50,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 28 [2021-11-19 13:32:50,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292003073] [2021-11-19 13:32:50,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:32:50,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-19 13:32:50,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:32:50,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-19 13:32:50,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 13:32:50,016 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 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) [2021-11-19 13:32:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:50,259 INFO L93 Difference]: Finished difference Result 124 states and 138 transitions. [2021-11-19 13:32:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 13:32:50,259 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 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) Word has length 45 [2021-11-19 13:32:50,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:50,260 INFO L225 Difference]: With dead ends: 124 [2021-11-19 13:32:50,260 INFO L226 Difference]: Without dead ends: 64 [2021-11-19 13:32:50,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=330, Invalid=1310, Unknown=0, NotChecked=0, Total=1640 [2021-11-19 13:32:50,263 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:50,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:32:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-19 13:32:50,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-19 13:32:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.126984126984127) internal successors, (71), 63 states have internal predecessors, (71), 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) [2021-11-19 13:32:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2021-11-19 13:32:50,275 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 45 [2021-11-19 13:32:50,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:50,276 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2021-11-19 13:32:50,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 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) [2021-11-19 13:32:50,276 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2021-11-19 13:32:50,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-19 13:32:50,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:50,277 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:50,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:50,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable999,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:50,495 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:50,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash 469330188, now seen corresponding path program 20 times [2021-11-19 13:32:50,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:50,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730438071] [2021-11-19 13:32:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:50,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 21 proven. 43 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-19 13:32:50,659 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:50,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730438071] [2021-11-19 13:32:50,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730438071] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:50,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608308239] [2021-11-19 13:32:50,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:32:50,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:50,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:50,663 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:50,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-19 13:32:50,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-19 13:32:50,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:32:50,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 13:32:50,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-19 13:32:51,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:32:51,209 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-19 13:32:51,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608308239] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:32:51,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [322723212] [2021-11-19 13:32:51,211 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:32:51,211 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:32:51,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:32:51,211 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:32:51,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:32:51,217 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:32:51,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:51,219 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:32:51,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:32:51,223 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_45|], 9=[|v_#valid_47|]} [2021-11-19 13:32:51,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:51,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:51,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:51,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:32:51,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:51,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:32:51,233 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,235 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:51,270 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:32:51,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:32:51,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:51,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:51,275 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,278 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:32:51,280 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,280 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:32:51,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,284 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,285 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:51,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:51,287 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,287 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:32:51,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:32:51,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:32:51,291 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:32:51,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:51,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:32:51,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:32:51,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:32:51,306 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,309 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,311 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:32:51,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:32:51,313 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,313 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:32:51,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:32:51,350 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:51,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:32:51,354 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:32:51,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:32:51,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,361 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:51,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:51,365 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,368 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,368 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:32:51,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:32:51,370 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,371 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:51,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:51,372 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:32:51,374 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:51,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:32:51,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,378 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:32:51,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:32:51,379 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:32:51,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:32:51,383 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:32:51,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:32:51,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:51,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:32:51,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:51,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:32:51,406 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:51,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:32:51,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:32:51,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:32:51,420 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:32:51,420 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,439 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:32:51,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:32:51,443 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:32:51,443 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:32:51,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,471 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:32:51,472 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,473 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:32:51,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:32:51,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:32:51,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:32:51,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:51,480 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 16 treesize of output 12 [2021-11-19 13:32:51,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:51,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:32:51,481 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:32:51,483 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:32:51,484 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:32:51,486 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:32:51,487 INFO L185 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-11-19 13:32:51,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,505 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.3 percent of original size [2021-11-19 13:32:51,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-19 13:32:51,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,519 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:51,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:51,522 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:51,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:51,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:51,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:51,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,552 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:51,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:51,555 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:51,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:51,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:51,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:51,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,573 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:51,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:51,575 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:32:51,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:32:51,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:32:51,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:32:51,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:32:51,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:32:51,594 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:32:51,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:32:51,597 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:32:51,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:32:51,811 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:32:51,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 29 [2021-11-19 13:32:51,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748558244] [2021-11-19 13:32:51,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:32:51,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-19 13:32:51,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:32:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-19 13:32:51,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 13:32:51,813 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 29 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 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) [2021-11-19 13:32:52,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:32:52,090 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2021-11-19 13:32:52,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 13:32:52,093 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 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) Word has length 46 [2021-11-19 13:32:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:32:52,093 INFO L225 Difference]: With dead ends: 87 [2021-11-19 13:32:52,093 INFO L226 Difference]: Without dead ends: 50 [2021-11-19 13:32:52,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=429, Invalid=1377, Unknown=0, NotChecked=0, Total=1806 [2021-11-19 13:32:52,095 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 61 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:32:52,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 17 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:32:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-19 13:32:52,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-19 13:32:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:32:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2021-11-19 13:32:52,103 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 46 [2021-11-19 13:32:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:32:52,103 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2021-11-19 13:32:52,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 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) [2021-11-19 13:32:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2021-11-19 13:32:52,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-19 13:32:52,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:32:52,104 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:32:52,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-19 13:32:52,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1054,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:52,307 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:32:52,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:32:52,307 INFO L85 PathProgramCache]: Analyzing trace with hash 301741830, now seen corresponding path program 21 times [2021-11-19 13:32:52,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:32:52,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436997330] [2021-11-19 13:32:52,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:32:52,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:32:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:32:55,158 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:32:55,158 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:32:55,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436997330] [2021-11-19 13:32:55,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436997330] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:32:55,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255307875] [2021-11-19 13:32:55,158 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:32:55,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:32:55,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:32:55,159 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:32:55,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-19 13:32:55,222 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:32:55,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:32:55,224 WARN L261 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 135 conjunts are in the unsatisfiable core [2021-11-19 13:32:55,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:32:57,630 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-19 13:32:57,630 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 37 treesize of output 20 [2021-11-19 13:32:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-19 13:32:57,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:04,273 INFO L354 Elim1Store]: treesize reduction 1059, result has 39.7 percent of original size [2021-11-19 13:33:04,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 138 treesize of output 718 [2021-11-19 13:33:11,454 INFO L354 Elim1Store]: treesize reduction 1723, result has 1.9 percent of original size [2021-11-19 13:33:11,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 137 treesize of output 53 [2021-11-19 13:33:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-19 13:33:11,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255307875] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:33:11,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1362631175] [2021-11-19 13:33:11,583 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:33:11,583 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:33:11,583 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:33:11,584 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:33:11,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:33:11,622 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:33:11,623 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:33:11,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:11,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:33:11,627 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_47|], 9=[|v_#valid_49|]} [2021-11-19 13:33:11,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:11,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:11,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:11,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:33:11,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:33:11,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:33:11,637 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,639 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:11,667 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:33:11,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:33:11,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:11,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:11,671 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,673 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:33:11,676 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,676 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:33:11,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:11,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:11,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,683 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:33:11,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:33:11,684 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:11,690 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:33:11,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:11,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:33:11,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:33:11,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:33:11,700 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,705 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:33:11,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:33:11,707 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,707 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:33:11,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,739 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,743 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,746 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:33:11,747 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:11,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:33:11,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:33:11,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:33:11,756 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,757 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:11,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:11,760 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,761 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,762 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:11,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:11,763 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,764 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:11,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:11,765 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:33:11,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:11,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:11,768 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,768 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:33:11,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:33:11,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:33:11,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:33:11,771 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:33:11,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:33:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:11,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:33:11,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:11,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:11,791 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:11,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:11,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:33:11,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:33:11,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:33:11,803 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,814 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:33:11,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:33:11,817 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:33:11,817 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:33:11,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,842 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:33:11,843 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,844 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:33:11,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:33:11,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:11,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:11,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:33:11,849 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 16 treesize of output 12 [2021-11-19 13:33:11,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:33:11,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:33:11,851 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,851 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:33:11,853 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:11,853 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:33:11,855 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:33:11,856 INFO L185 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-11-19 13:33:11,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,865 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.3 percent of original size [2021-11-19 13:33:11,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-19 13:33:11,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,889 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:11,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:11,892 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:11,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:11,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,895 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:33:11,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:33:11,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,913 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:11,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:11,916 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:11,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:11,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:33:11,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:33:11,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,933 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:11,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:11,935 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:11,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:11,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,938 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:33:11,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:11,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:33:11,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:11,955 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:11,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:11,959 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:33:12,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:33:12,676 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:33:12,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 38, 38] total 102 [2021-11-19 13:33:12,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608744614] [2021-11-19 13:33:12,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:33:12,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2021-11-19 13:33:12,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:33:12,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-11-19 13:33:12,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=10934, Unknown=0, NotChecked=0, Total=11342 [2021-11-19 13:33:12,679 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 102 states, 102 states have (on average 1.1176470588235294) internal successors, (114), 102 states have internal predecessors, (114), 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) [2021-11-19 13:33:19,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:19,245 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2021-11-19 13:33:19,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-19 13:33:19,246 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 1.1176470588235294) internal successors, (114), 102 states have internal predecessors, (114), 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 49 [2021-11-19 13:33:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:19,246 INFO L225 Difference]: With dead ends: 81 [2021-11-19 13:33:19,246 INFO L226 Difference]: Without dead ends: 78 [2021-11-19 13:33:19,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 72 SyntacticMatches, 16 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5150 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=804, Invalid=18102, Unknown=0, NotChecked=0, Total=18906 [2021-11-19 13:33:19,248 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 3370 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 3465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:19,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 135 Invalid, 3465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3370 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 13:33:19,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-19 13:33:19,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 70. [2021-11-19 13:33:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.1159420289855073) internal successors, (77), 69 states have internal predecessors, (77), 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) [2021-11-19 13:33:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2021-11-19 13:33:19,264 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 49 [2021-11-19 13:33:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:19,264 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2021-11-19 13:33:19,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 1.1176470588235294) internal successors, (114), 102 states have internal predecessors, (114), 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) [2021-11-19 13:33:19,265 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2021-11-19 13:33:19,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 13:33:19,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:19,266 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:19,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:19,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1110 [2021-11-19 13:33:19,471 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:33:19,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1167448608, now seen corresponding path program 22 times [2021-11-19 13:33:19,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:33:19,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925316889] [2021-11-19 13:33:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:19,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:33:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 37 proven. 44 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-19 13:33:19,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:33:19,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925316889] [2021-11-19 13:33:19,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925316889] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:33:19,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121491626] [2021-11-19 13:33:19,662 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:33:19,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:33:19,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:33:19,663 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:33:19,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-19 13:33:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:19,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:33:19,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-19 13:33:19,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-19 13:33:20,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121491626] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:33:20,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1273556387] [2021-11-19 13:33:20,058 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:33:20,058 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:33:20,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:33:20,058 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:33:20,058 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:33:20,073 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:33:20,074 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:20,075 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:33:20,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:33:20,079 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_49|], 9=[|v_#valid_51|]} [2021-11-19 13:33:20,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:20,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:20,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:20,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:33:20,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:33:20,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:33:20,089 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,101 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:20,132 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:33:20,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:33:20,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:20,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:20,137 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:33:20,142 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,142 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:33:20,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,147 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:20,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:20,148 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,149 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:20,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:20,151 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:33:20,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:33:20,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:20,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:33:20,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:20,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:20,163 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:33:20,169 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,170 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:33:20,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,202 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,205 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:33:20,207 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:20,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:33:20,210 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:33:20,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:33:20,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,218 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:20,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:20,221 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,223 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,223 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:20,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:20,224 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,225 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:20,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:20,227 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:33:20,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:20,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:20,230 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,231 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:33:20,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:33:20,232 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:33:20,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:33:20,234 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:33:20,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:33:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:20,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:33:20,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:20,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:20,252 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:20,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:20,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:33:20,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:33:20,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:33:20,263 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,272 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,276 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:33:20,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:33:20,278 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:33:20,278 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:33:20,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,295 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:33:20,296 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,297 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:33:20,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:33:20,298 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:20,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:20,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:33:20,302 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 16 treesize of output 12 [2021-11-19 13:33:20,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:33:20,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:33:20,304 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:33:20,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:20,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:33:20,310 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:33:20,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:33:20,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,320 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:33:20,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:33:20,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,346 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:20,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:20,349 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:20,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:20,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,351 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:33:20,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,357 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:33:20,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,367 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:20,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:20,369 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:20,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:20,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:33:20,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:33:20,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,401 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:20,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:20,403 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:20,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:20,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:33:20,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:20,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:33:20,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:20,421 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:20,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:20,424 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:33:20,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:33:20,674 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:33:20,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 31 [2021-11-19 13:33:20,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208035624] [2021-11-19 13:33:20,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:33:20,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-19 13:33:20,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:33:20,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-19 13:33:20,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1006, Unknown=0, NotChecked=0, Total=1260 [2021-11-19 13:33:20,676 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 31 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 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) [2021-11-19 13:33:20,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:20,929 INFO L93 Difference]: Finished difference Result 138 states and 152 transitions. [2021-11-19 13:33:20,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 13:33:20,929 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 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 50 [2021-11-19 13:33:20,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:20,930 INFO L225 Difference]: With dead ends: 138 [2021-11-19 13:33:20,930 INFO L226 Difference]: Without dead ends: 71 [2021-11-19 13:33:20,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=400, Invalid=1580, Unknown=0, NotChecked=0, Total=1980 [2021-11-19 13:33:20,930 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:20,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 15 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:33:20,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-19 13:33:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-19 13:33:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.1142857142857143) internal successors, (78), 70 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2021-11-19 13:33:20,940 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 50 [2021-11-19 13:33:20,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:20,940 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2021-11-19 13:33:20,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 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) [2021-11-19 13:33:20,941 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2021-11-19 13:33:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-19 13:33:20,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:20,941 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:20,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:21,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1166 [2021-11-19 13:33:21,142 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:33:21,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash -418900427, now seen corresponding path program 23 times [2021-11-19 13:33:21,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:33:21,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082626342] [2021-11-19 13:33:21,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:21,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:33:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 28 proven. 53 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-19 13:33:21,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:33:21,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082626342] [2021-11-19 13:33:21,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082626342] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:33:21,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697948378] [2021-11-19 13:33:21,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:33:21,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:33:21,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:33:21,343 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:33:21,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-19 13:33:21,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-19 13:33:21,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:33:21,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:33:21,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 36 proven. 45 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-19 13:33:21,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:21,978 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 36 proven. 45 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-19 13:33:21,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697948378] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:33:21,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1094867846] [2021-11-19 13:33:21,983 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:33:21,983 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:33:21,983 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:33:21,984 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:33:21,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:33:21,997 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:33:21,998 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:21,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:21,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:21,999 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:21,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:21,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:33:22,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:33:22,001 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_50|], 9=[|v_#valid_52|]} [2021-11-19 13:33:22,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:22,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:22,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:22,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:33:22,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:33:22,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:33:22,012 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,014 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:22,038 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:33:22,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:33:22,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:22,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:22,041 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,043 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:33:22,044 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,044 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:33:22,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,047 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,047 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:22,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:22,048 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,049 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:22,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:22,050 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:33:22,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:33:22,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:22,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:33:22,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:22,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:22,059 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,061 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:33:22,063 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,063 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:33:22,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,081 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:22,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:22,083 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,085 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,087 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:22,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:33:22,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:33:22,090 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:33:22,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:33:22,095 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,097 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:22,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:22,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:33:22,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:33:22,100 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:33:22,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:22,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:22,103 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,104 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:22,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:22,105 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:33:22,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:33:22,107 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:33:22,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:33:22,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:22,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:33:22,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:22,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:22,141 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:22,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:22,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:33:22,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:33:22,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:33:22,157 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,170 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,176 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:33:22,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:33:22,180 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:33:22,180 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:33:22,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,196 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:33:22,199 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,200 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:33:22,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:33:22,201 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:22,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:22,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:33:22,207 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 16 treesize of output 12 [2021-11-19 13:33:22,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:33:22,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:33:22,209 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,210 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:33:22,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:22,212 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:33:22,216 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:33:22,217 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:33:22,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,232 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:33:22,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:33:22,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,249 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:22,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:22,253 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:22,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:22,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,256 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:33:22,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:33:22,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,280 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:22,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:22,284 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:22,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:22,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:33:22,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:33:22,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,310 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:22,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:22,313 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:22,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:22,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:33:22,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:22,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:33:22,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:22,339 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:22,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:22,351 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:33:22,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:33:22,622 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:33:22,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2021-11-19 13:33:22,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934747963] [2021-11-19 13:33:22,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:33:22,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-19 13:33:22,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:33:22,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-19 13:33:22,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1672, Unknown=0, NotChecked=0, Total=1980 [2021-11-19 13:33:22,624 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 40 states, 40 states have (on average 1.575) internal successors, (63), 40 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:23,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:23,021 INFO L93 Difference]: Finished difference Result 96 states and 108 transitions. [2021-11-19 13:33:23,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-19 13:33:23,022 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.575) internal successors, (63), 40 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-19 13:33:23,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:23,022 INFO L225 Difference]: With dead ends: 96 [2021-11-19 13:33:23,022 INFO L226 Difference]: Without dead ends: 55 [2021-11-19 13:33:23,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=585, Invalid=2495, Unknown=0, NotChecked=0, Total=3080 [2021-11-19 13:33:23,023 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:23,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 15 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:33:23,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-19 13:33:23,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-19 13:33:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0925925925925926) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-11-19 13:33:23,036 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 51 [2021-11-19 13:33:23,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:23,036 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-11-19 13:33:23,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.575) internal successors, (63), 40 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-11-19 13:33:23,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-19 13:33:23,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:23,037 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:23,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:23,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1221 [2021-11-19 13:33:23,247 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:33:23,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash 330831805, now seen corresponding path program 24 times [2021-11-19 13:33:23,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:33:23,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402965370] [2021-11-19 13:33:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:23,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:33:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 6 proven. 219 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:27,545 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:33:27,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402965370] [2021-11-19 13:33:27,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402965370] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:33:27,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731088338] [2021-11-19 13:33:27,545 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:33:27,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:33:27,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:33:27,546 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:33:27,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-19 13:33:27,625 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:33:27,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:33:27,628 WARN L261 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 151 conjunts are in the unsatisfiable core [2021-11-19 13:33:27,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:31,317 INFO L354 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2021-11-19 13:33:31,317 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 41 treesize of output 20 [2021-11-19 13:33:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:33:31,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:41,630 INFO L354 Elim1Store]: treesize reduction 1362, result has 39.3 percent of original size [2021-11-19 13:33:41,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 154 treesize of output 905 [2021-11-19 13:33:52,204 INFO L354 Elim1Store]: treesize reduction 2208, result has 1.6 percent of original size [2021-11-19 13:33:52,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 155 treesize of output 60 [2021-11-19 13:33:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 13:33:52,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731088338] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:33:52,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1025898370] [2021-11-19 13:33:52,360 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:33:52,360 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:33:52,360 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:33:52,361 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:33:52,361 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:33:52,374 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:33:52,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:33:52,376 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:52,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:33:52,378 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_52|], 9=[|v_#valid_54|]} [2021-11-19 13:33:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:52,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:52,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:52,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:33:52,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:33:52,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:33:52,386 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,388 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:52,418 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:33:52,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:33:52,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:52,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:33:52,421 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,423 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:33:52,424 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,424 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:33:52,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,431 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:52,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:52,433 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,433 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:52,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:52,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:33:52,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:33:52,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:52,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:33:52,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:52,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:52,445 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,451 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:33:52,454 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,454 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:33:52,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,473 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,476 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,478 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:33:52,479 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:52,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:33:52,481 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:33:52,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:33:52,485 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,485 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:52,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:52,488 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,491 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:52,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:52,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:33:52,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:33:52,493 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:33:52,495 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,495 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:33:52,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:33:52,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:52,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:33:52,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:33:52,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:33:52,510 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:33:52,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:33:52,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:52,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:52,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:33:52,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:33:52,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:33:52,539 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:33:52,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:33:52,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:52,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:33:52,550 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,559 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,562 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:33:52,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:33:52,566 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:33:52,567 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:33:52,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,583 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:33:52,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,585 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:33:52,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:33:52,587 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:33:52,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:33:52,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:33:52,592 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 16 treesize of output 12 [2021-11-19 13:33:52,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:33:52,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:33:52,594 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,595 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:33:52,598 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:33:52,598 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:33:52,601 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:33:52,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:33:52,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,617 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:33:52,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:33:52,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,637 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:52,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:52,639 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:52,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:52,641 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,642 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:33:52,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:33:52,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,657 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:52,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:52,660 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:52,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:52,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:33:52,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:33:52,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,692 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:52,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:52,695 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:33:52,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:33:52,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,699 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:33:52,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:33:52,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:33:52,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:33:52,742 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:33:52,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:33:52,747 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:33:53,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:33:53,657 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:33:53,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 42, 42] total 114 [2021-11-19 13:33:53,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927774687] [2021-11-19 13:33:53,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:33:53,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2021-11-19 13:33:53,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:33:53,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2021-11-19 13:33:53,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=13634, Unknown=0, NotChecked=0, Total=14042 [2021-11-19 13:33:53,659 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 114 states, 114 states have (on average 1.105263157894737) internal successors, (126), 114 states have internal predecessors, (126), 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) [2021-11-19 13:34:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:34:03,584 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2021-11-19 13:34:03,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-19 13:34:03,585 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 114 states have (on average 1.105263157894737) internal successors, (126), 114 states have internal predecessors, (126), 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 54 [2021-11-19 13:34:03,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:34:03,586 INFO L225 Difference]: With dead ends: 89 [2021-11-19 13:34:03,586 INFO L226 Difference]: Without dead ends: 86 [2021-11-19 13:34:03,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 80 SyntacticMatches, 16 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5361 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=892, Invalid=22670, Unknown=0, NotChecked=0, Total=23562 [2021-11-19 13:34:03,588 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 3909 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 4026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 3909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:34:03,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 139 Invalid, 4026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 3909 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-19 13:34:03,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-19 13:34:03,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 77. [2021-11-19 13:34:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.105263157894737) internal successors, (84), 76 states have internal predecessors, (84), 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) [2021-11-19 13:34:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2021-11-19 13:34:03,603 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 54 [2021-11-19 13:34:03,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:34:03,603 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2021-11-19 13:34:03,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 114 states have (on average 1.105263157894737) internal successors, (126), 114 states have internal predecessors, (126), 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) [2021-11-19 13:34:03,603 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2021-11-19 13:34:03,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-19 13:34:03,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:34:03,604 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:34:03,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-19 13:34:03,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1276 [2021-11-19 13:34:03,811 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:34:03,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:34:03,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1798302751, now seen corresponding path program 25 times [2021-11-19 13:34:03,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:34:03,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506552115] [2021-11-19 13:34:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:34:03,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:34:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:34:04,024 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 46 proven. 54 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 13:34:04,024 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:34:04,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506552115] [2021-11-19 13:34:04,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506552115] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:34:04,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942316616] [2021-11-19 13:34:04,024 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:34:04,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:34:04,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:34:04,030 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:34:04,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-19 13:34:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:34:04,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 13:34:04,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:34:04,390 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 55 proven. 45 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 13:34:04,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:34:04,497 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 55 proven. 45 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-11-19 13:34:04,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942316616] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:34:04,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1430913987] [2021-11-19 13:34:04,499 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:34:04,499 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:34:04,499 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:34:04,499 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:34:04,499 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:34:04,505 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:34:04,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:34:04,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:34:04,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:34:04,508 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_54|], 9=[|v_#valid_56|]} [2021-11-19 13:34:04,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:04,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:04,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:04,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:34:04,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:34:04,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:34:04,541 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,543 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:04,575 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:34:04,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:34:04,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:34:04,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:34:04,580 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,583 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:34:04,585 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,586 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:34:04,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,589 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,590 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:04,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:04,592 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,593 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:34:04,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:34:04,595 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:34:04,597 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:34:04,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:04,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:34:04,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:34:04,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:34:04,608 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,611 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,613 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:34:04,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:34:04,615 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,615 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:34:04,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,641 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,644 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,651 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:34:04,653 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:34:04,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:34:04,656 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:34:04,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:34:04,662 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,663 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:04,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:04,666 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,669 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:34:04,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:34:04,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:04,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:04,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:34:04,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:04,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:04,679 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:34:04,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:34:04,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:34:04,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:34:04,686 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:34:04,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:34:04,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:04,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:04,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:34:04,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:34:04,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:34:04,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:04,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:34:04,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:04,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:04,729 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,740 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:34:04,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:34:04,742 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:34:04,743 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:34:04,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,760 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:34:04,761 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,761 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:34:04,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:34:04,762 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:04,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:04,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:34:04,767 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 16 treesize of output 12 [2021-11-19 13:34:04,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:34:04,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:34:04,768 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,769 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:34:04,771 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:04,771 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:34:04,773 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:34:04,774 INFO L185 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-11-19 13:34:04,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,784 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.3 percent of original size [2021-11-19 13:34:04,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-19 13:34:04,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,796 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:04,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:04,798 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:04,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:04,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,802 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:34:04,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:34:04,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,817 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:04,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:04,820 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:04,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:04,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:34:04,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:34:04,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,841 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:04,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:04,843 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:04,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:04,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,846 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:34:04,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:04,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:34:04,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:04,861 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:04,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:04,865 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:34:05,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:34:05,127 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:34:05,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 34 [2021-11-19 13:34:05,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052104246] [2021-11-19 13:34:05,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:34:05,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-19 13:34:05,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:34:05,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-19 13:34:05,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1182, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 13:34:05,128 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 34 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 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) [2021-11-19 13:34:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:34:05,427 INFO L93 Difference]: Finished difference Result 152 states and 166 transitions. [2021-11-19 13:34:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-19 13:34:05,427 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 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 55 [2021-11-19 13:34:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:34:05,428 INFO L225 Difference]: With dead ends: 152 [2021-11-19 13:34:05,428 INFO L226 Difference]: Without dead ends: 78 [2021-11-19 13:34:05,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=477, Invalid=1875, Unknown=0, NotChecked=0, Total=2352 [2021-11-19 13:34:05,429 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:34:05,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 19 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:34:05,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-19 13:34:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-19 13:34:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.103896103896104) internal successors, (85), 77 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:34:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2021-11-19 13:34:05,441 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 55 [2021-11-19 13:34:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:34:05,441 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2021-11-19 13:34:05,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 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) [2021-11-19 13:34:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2021-11-19 13:34:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-19 13:34:05,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:34:05,441 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:34:05,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-19 13:34:05,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1331 [2021-11-19 13:34:05,642 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:34:05,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:34:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash -562818900, now seen corresponding path program 26 times [2021-11-19 13:34:05,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:34:05,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927434343] [2021-11-19 13:34:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:34:05,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:34:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:34:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 36 proven. 64 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-19 13:34:05,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:34:05,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927434343] [2021-11-19 13:34:05,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927434343] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:34:05,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382256634] [2021-11-19 13:34:05,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:34:05,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:34:05,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:34:05,877 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:34:05,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-19 13:34:06,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-19 13:34:06,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:34:06,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 13:34:06,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:34:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-19 13:34:06,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:34:06,692 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-19 13:34:06,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382256634] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:34:06,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1273984690] [2021-11-19 13:34:06,694 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:34:06,694 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:34:06,694 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:34:06,694 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:34:06,695 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:34:06,705 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:34:06,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:34:06,706 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:34:06,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:34:06,708 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_55|], 9=[|v_#valid_57|]} [2021-11-19 13:34:06,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:34:06,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:34:06,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:34:06,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,741 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:34:06,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:34:06,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:34:06,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:34:06,745 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,746 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:34:06,748 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,748 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:34:06,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,750 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,750 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:34:06,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:34:06,756 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,757 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:06,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:06,758 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:34:06,759 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:34:06,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:34:06,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:34:06,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:34:06,767 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,769 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,770 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:34:06,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:34:06,771 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,771 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:34:06,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,790 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,793 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,794 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:34:06,795 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:34:06,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:34:06,797 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:34:06,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:34:06,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:06,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:06,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,805 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,806 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:34:06,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:34:06,807 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,807 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:06,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:06,808 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:34:06,810 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,810 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:06,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:06,811 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:34:06,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:34:06,813 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:34:06,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:34:06,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:34:06,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:34:06,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:34:06,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:34:06,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:34:06,841 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:06,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:34:06,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:06,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:06,851 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,862 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:34:06,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:34:06,865 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:34:06,865 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:34:06,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,881 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:34:06,882 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,883 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:34:06,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:34:06,884 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:06,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:06,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:34:06,888 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 16 treesize of output 12 [2021-11-19 13:34:06,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:34:06,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:34:06,890 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,891 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:34:06,892 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:06,892 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:34:06,894 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:34:06,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:34:06,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,905 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:34:06,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:34:06,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,917 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:06,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:06,919 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:06,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:06,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:34:06,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:34:06,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,943 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:06,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:06,948 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:06,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:06,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,951 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:34:06,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:34:06,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,966 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:06,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:06,969 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:06,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:06,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,971 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:34:06,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:06,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:34:06,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:06,987 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:06,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:06,991 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:34:07,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:34:07,247 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:34:07,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 44 [2021-11-19 13:34:07,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440329997] [2021-11-19 13:34:07,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:34:07,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-19 13:34:07,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:34:07,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-19 13:34:07,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=1988, Unknown=0, NotChecked=0, Total=2352 [2021-11-19 13:34:07,249 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand has 44 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 44 states have internal predecessors, (70), 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) [2021-11-19 13:34:07,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:34:07,649 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2021-11-19 13:34:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-19 13:34:07,650 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 44 states have internal predecessors, (70), 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 56 [2021-11-19 13:34:07,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:34:07,650 INFO L225 Difference]: With dead ends: 105 [2021-11-19 13:34:07,651 INFO L226 Difference]: Without dead ends: 60 [2021-11-19 13:34:07,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=696, Invalid=2964, Unknown=0, NotChecked=0, Total=3660 [2021-11-19 13:34:07,651 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:34:07,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 11 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:34:07,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-19 13:34:07,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-19 13:34:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.0847457627118644) internal successors, (64), 59 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:34:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2021-11-19 13:34:07,665 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 56 [2021-11-19 13:34:07,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:34:07,665 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2021-11-19 13:34:07,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 44 states have internal predecessors, (70), 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) [2021-11-19 13:34:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2021-11-19 13:34:07,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-19 13:34:07,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:34:07,666 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:34:07,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-19 13:34:07,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1387 [2021-11-19 13:34:07,883 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:34:07,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:34:07,883 INFO L85 PathProgramCache]: Analyzing trace with hash -448027930, now seen corresponding path program 27 times [2021-11-19 13:34:07,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:34:07,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378720063] [2021-11-19 13:34:07,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:34:07,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:34:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:34:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 15 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:34:12,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:34:12,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378720063] [2021-11-19 13:34:12,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378720063] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:34:12,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655064764] [2021-11-19 13:34:12,473 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:34:12,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:34:12,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:34:12,474 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:34:12,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-19 13:34:12,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:34:12,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:34:12,557 WARN L261 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 167 conjunts are in the unsatisfiable core [2021-11-19 13:34:12,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:34:16,951 INFO L354 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2021-11-19 13:34:16,952 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 43 treesize of output 22 [2021-11-19 13:34:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:34:17,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:34:29,950 INFO L354 Elim1Store]: treesize reduction 1703, result has 39.0 percent of original size [2021-11-19 13:34:29,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 172 treesize of output 1116 [2021-11-19 13:34:56,759 INFO L354 Elim1Store]: treesize reduction 2753, result has 1.5 percent of original size [2021-11-19 13:34:56,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 171 treesize of output 65 [2021-11-19 13:34:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 13:34:56,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655064764] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:34:56,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1679826806] [2021-11-19 13:34:56,939 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:34:56,939 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:34:56,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:34:56,940 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:34:56,940 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:34:56,953 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:34:56,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:56,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:56,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:34:56,955 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:56,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:56,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:34:56,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:34:56,959 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_57|], 9=[|v_#valid_59|]} [2021-11-19 13:34:56,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:56,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:56,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:56,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:34:56,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:56,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:34:56,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:56,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:34:56,971 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:56,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:56,973 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:56,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:57,007 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:34:57,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:34:57,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:34:57,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:34:57,012 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:57,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,014 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:34:57,017 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:57,017 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:34:57,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,021 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:34:57,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:34:57,024 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:57,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:57,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:34:57,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:34:57,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:57,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:34:57,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:57,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:57,039 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:57,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,042 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:34:57,046 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:57,046 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:34:57,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,075 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,079 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:34:57,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:34:57,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:34:57,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:34:57,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:34:57,095 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,096 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:57,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:57,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:57,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:57,104 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,105 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:34:57,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:34:57,106 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:34:57,108 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,108 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:34:57,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:34:57,110 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,110 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:57,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:34:57,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:34:57,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:34:57,114 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:34:57,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:34:57,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:57,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:57,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:34:57,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:34:57,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:34:57,137 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:57,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:34:57,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:34:57,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:57,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:34:57,148 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:57,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,166 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:34:57,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:34:57,168 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:34:57,169 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:34:57,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,184 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:34:57,185 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,186 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:34:57,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:34:57,187 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:34:57,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:34:57,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:34:57,191 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 16 treesize of output 12 [2021-11-19 13:34:57,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:34:57,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:34:57,193 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:34:57,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,194 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:34:57,195 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:34:57,195 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:34:57,198 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:34:57,199 INFO L185 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-11-19 13:34:57,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,209 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.3 percent of original size [2021-11-19 13:34:57,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-11-19 13:34:57,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,227 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:57,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:57,230 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:57,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:57,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:34:57,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:34:57,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,248 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:57,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:57,251 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:57,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:57,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,255 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:34:57,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:34:57,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,271 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:57,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:57,273 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:34:57,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:34:57,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:34:57,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:34:57,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:34:57,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:34:57,293 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:34:57,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:34:57,297 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:34:58,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:34:58,280 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:34:58,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 46, 46] total 128 [2021-11-19 13:34:58,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082610188] [2021-11-19 13:34:58,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:34:58,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2021-11-19 13:34:58,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:34:58,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2021-11-19 13:34:58,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=572, Invalid=16984, Unknown=0, NotChecked=0, Total=17556 [2021-11-19 13:34:58,283 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 128 states, 128 states have (on average 1.09375) internal successors, (140), 128 states have internal predecessors, (140), 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) [2021-11-19 13:35:10,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:10,209 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2021-11-19 13:35:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-19 13:35:10,210 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 1.09375) internal successors, (140), 128 states have internal predecessors, (140), 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 59 [2021-11-19 13:35:10,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:10,210 INFO L225 Difference]: With dead ends: 97 [2021-11-19 13:35:10,211 INFO L226 Difference]: Without dead ends: 94 [2021-11-19 13:35:10,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 86 SyntacticMatches, 16 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8123 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=1153, Invalid=28259, Unknown=0, NotChecked=0, Total=29412 [2021-11-19 13:35:10,212 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4356 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 4482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 4356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:10,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 145 Invalid, 4482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 4356 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-19 13:35:10,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-19 13:35:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2021-11-19 13:35:10,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 83 states have internal predecessors, (91), 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) [2021-11-19 13:35:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-11-19 13:35:10,229 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 59 [2021-11-19 13:35:10,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:10,230 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-11-19 13:35:10,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 1.09375) internal successors, (140), 128 states have internal predecessors, (140), 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) [2021-11-19 13:35:10,230 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-11-19 13:35:10,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 13:35:10,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:10,230 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:10,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:10,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1443 [2021-11-19 13:35:10,431 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:10,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:10,431 INFO L85 PathProgramCache]: Analyzing trace with hash -334708480, now seen corresponding path program 28 times [2021-11-19 13:35:10,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:35:10,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281121338] [2021-11-19 13:35:10,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:10,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:35:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 56 proven. 65 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-19 13:35:10,682 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:35:10,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281121338] [2021-11-19 13:35:10,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281121338] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:35:10,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716480923] [2021-11-19 13:35:10,683 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:35:10,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:35:10,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:35:10,687 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:35:10,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-19 13:35:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:10,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-19 13:35:10,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-19 13:35:11,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-11-19 13:35:11,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716480923] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:35:11,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1525507528] [2021-11-19 13:35:11,314 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:35:11,314 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:35:11,314 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:35:11,314 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:35:11,314 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:35:11,321 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:35:11,321 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:35:11,323 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:35:11,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:35:11,325 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_59|], 9=[|v_#valid_61|]} [2021-11-19 13:35:11,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:11,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:11,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:11,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:35:11,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:35:11,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:35:11,334 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,336 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:11,365 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:35:11,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:35:11,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:35:11,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:35:11,368 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,370 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:35:11,371 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,371 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:35:11,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,373 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,374 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:35:11,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:35:11,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,376 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:35:11,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:35:11,378 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:35:11,380 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:35:11,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:11,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:35:11,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:35:11,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:35:11,390 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,392 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,393 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:35:11,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:35:11,394 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,394 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:35:11,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,424 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,428 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,430 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:35:11,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:35:11,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:35:11,436 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:35:11,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:35:11,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,442 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:35:11,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:35:11,446 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,449 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,450 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:35:11,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:35:11,452 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,452 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:35:11,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:35:11,453 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:35:11,455 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,455 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:35:11,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:35:11,456 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,457 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:35:11,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:35:11,458 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:35:11,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:35:11,460 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:35:11,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:35:11,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:11,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:11,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:35:11,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:35:11,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:35:11,480 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:11,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:35:11,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:35:11,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:35:11,490 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,498 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,502 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:35:11,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:35:11,504 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:35:11,504 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:35:11,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,521 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:35:11,522 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,522 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:35:11,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:35:11,523 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:11,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:35:11,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:35:11,527 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 16 treesize of output 12 [2021-11-19 13:35:11,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:35:11,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:35:11,529 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,529 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:35:11,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:35:11,531 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:35:11,533 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:35:11,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:35:11,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,544 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:35:11,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:35:11,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,555 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:35:11,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:35:11,557 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:35:11,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:35:11,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,560 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:35:11,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:35:11,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,575 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:35:11,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:35:11,577 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:35:11,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:35:11,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,580 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:35:11,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:35:11,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,595 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:35:11,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:35:11,597 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:35:11,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:35:11,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:35:11,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:11,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:35:11,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:11,624 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:35:11,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:35:11,629 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:35:11,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:35:11,906 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:35:11,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 37 [2021-11-19 13:35:11,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390021220] [2021-11-19 13:35:11,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:35:11,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-19 13:35:11,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:35:11,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-19 13:35:11,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=1372, Unknown=0, NotChecked=0, Total=1722 [2021-11-19 13:35:11,908 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 37 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 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) [2021-11-19 13:35:12,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:12,273 INFO L93 Difference]: Finished difference Result 166 states and 180 transitions. [2021-11-19 13:35:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-19 13:35:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 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) Word has length 60 [2021-11-19 13:35:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:12,274 INFO L225 Difference]: With dead ends: 166 [2021-11-19 13:35:12,274 INFO L226 Difference]: Without dead ends: 85 [2021-11-19 13:35:12,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=561, Invalid=2195, Unknown=0, NotChecked=0, Total=2756 [2021-11-19 13:35:12,275 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:12,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 17 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:35:12,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-19 13:35:12,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-19 13:35:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.0952380952380953) internal successors, (92), 84 states have internal predecessors, (92), 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) [2021-11-19 13:35:12,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2021-11-19 13:35:12,290 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 60 [2021-11-19 13:35:12,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:12,290 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2021-11-19 13:35:12,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 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) [2021-11-19 13:35:12,290 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2021-11-19 13:35:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 13:35:12,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:12,291 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:12,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:12,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1498 [2021-11-19 13:35:12,492 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:12,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:12,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1880225003, now seen corresponding path program 29 times [2021-11-19 13:35:12,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:35:12,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46138008] [2021-11-19 13:35:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:12,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:35:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 45 proven. 76 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-19 13:35:12,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:35:12,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46138008] [2021-11-19 13:35:12,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46138008] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:35:12,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379977965] [2021-11-19 13:35:12,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:35:12,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:35:12,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:35:12,786 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:35:12,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-19 13:35:12,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-19 13:35:12,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:35:12,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-19 13:35:12,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 55 proven. 66 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-19 13:35:13,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:13,713 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 55 proven. 66 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-19 13:35:13,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379977965] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:35:13,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [698591438] [2021-11-19 13:35:13,714 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:35:13,714 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:35:13,715 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:35:13,715 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:35:13,715 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:35:13,721 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:35:13,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:35:13,723 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:35:13,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:35:13,726 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_60|], 9=[|v_#valid_62|]} [2021-11-19 13:35:13,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:13,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:13,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:35:13,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:35:13,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:35:13,734 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,735 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:13,760 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:35:13,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:35:13,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:35:13,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:35:13,763 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,765 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:35:13,766 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,766 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:35:13,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:35:13,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:35:13,771 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,771 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:35:13,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:35:13,772 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:35:13,774 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:35:13,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:13,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:35:13,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:35:13,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:35:13,782 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,784 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,785 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:35:13,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:35:13,786 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,786 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:35:13,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,805 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,807 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:35:13,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:35:13,808 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,810 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:35:13,813 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:35:13,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:35:13,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:35:13,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:35:13,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:35:13,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:35:13,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:35:13,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:35:13,825 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:35:13,826 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,826 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,827 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:35:13,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:35:13,844 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:35:13,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:35:13,847 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:35:13,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:35:13,850 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:35:13,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:35:13,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:13,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:35:13,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:35:13,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:35:13,874 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:13,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:35:13,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:35:13,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:35:13,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:35:13,890 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,898 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,902 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:35:13,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:35:13,904 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:35:13,904 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:35:13,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,923 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:35:13,924 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,924 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:35:13,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:35:13,925 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:35:13,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:35:13,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:35:13,930 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 16 treesize of output 12 [2021-11-19 13:35:13,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:35:13,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:35:13,931 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,932 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:35:13,933 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:35:13,933 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:35:13,936 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:35:13,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:35:13,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,946 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:35:13,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:35:13,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,957 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:35:13,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:35:13,962 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:35:13,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:35:13,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,981 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:35:13,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:13,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:35:13,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:13,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,000 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:35:14,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:35:14,003 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:35:14,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:35:14,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:14,005 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:35:14,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:14,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:35:14,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,024 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:35:14,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:35:14,027 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:35:14,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:35:14,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:14,044 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:35:14,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:14,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:35:14,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:35:14,066 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:35:14,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:35:14,071 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:35:14,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:35:14,341 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:35:14,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2021-11-19 13:35:14,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101785359] [2021-11-19 13:35:14,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:35:14,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-19 13:35:14,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:35:14,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-19 13:35:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=2331, Unknown=0, NotChecked=0, Total=2756 [2021-11-19 13:35:14,343 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand has 48 states, 48 states have (on average 1.5625) internal successors, (75), 48 states have internal predecessors, (75), 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) [2021-11-19 13:35:14,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:14,784 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2021-11-19 13:35:14,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-19 13:35:14,785 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.5625) internal successors, (75), 48 states have internal predecessors, (75), 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 61 [2021-11-19 13:35:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:14,785 INFO L225 Difference]: With dead ends: 114 [2021-11-19 13:35:14,786 INFO L226 Difference]: Without dead ends: 65 [2021-11-19 13:35:14,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 153 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=817, Invalid=3473, Unknown=0, NotChecked=0, Total=4290 [2021-11-19 13:35:14,786 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:14,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 19 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:35:14,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-19 13:35:14,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-19 13:35:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.078125) internal successors, (69), 64 states have internal predecessors, (69), 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) [2021-11-19 13:35:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2021-11-19 13:35:14,811 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 61 [2021-11-19 13:35:14,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:14,811 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2021-11-19 13:35:14,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.5625) internal successors, (75), 48 states have internal predecessors, (75), 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) [2021-11-19 13:35:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2021-11-19 13:35:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-19 13:35:14,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:14,811 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:14,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:15,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1554,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:35:15,015 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:15,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:15,015 INFO L85 PathProgramCache]: Analyzing trace with hash -969761187, now seen corresponding path program 30 times [2021-11-19 13:35:15,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:35:15,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702169918] [2021-11-19 13:35:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:15,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:35:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 1 proven. 329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:35:20,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:35:20,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702169918] [2021-11-19 13:35:20,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702169918] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:35:20,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874174089] [2021-11-19 13:35:20,798 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:35:20,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:35:20,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:35:20,799 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:35:20,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-19 13:35:20,892 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:35:20,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:35:20,895 WARN L261 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 183 conjunts are in the unsatisfiable core [2021-11-19 13:35:20,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:26,935 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 13:35:26,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:44,899 WARN L227 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 981 DAG size of output: 541 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:35:44,907 INFO L354 Elim1Store]: treesize reduction 2082, result has 38.8 percent of original size [2021-11-19 13:35:44,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 189 treesize of output 1348 [2021-11-19 13:36:38,246 INFO L354 Elim1Store]: treesize reduction 3358, result has 1.3 percent of original size [2021-11-19 13:36:38,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 188 treesize of output 71 [2021-11-19 13:36:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-19 13:36:38,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874174089] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:36:38,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1924733547] [2021-11-19 13:36:38,443 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:36:38,443 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:36:38,444 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:36:38,444 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:36:38,444 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:36:38,450 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:36:38,450 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:36:38,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:36:38,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:36:38,454 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_62|], 9=[|v_#valid_64|]} [2021-11-19 13:36:38,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:38,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:38,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:38,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:36:38,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:36:38,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:36:38,462 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:38,488 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:36:38,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:36:38,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:36:38,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:36:38,491 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,494 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:36:38,495 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,495 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:36:38,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:36:38,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:36:38,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:38,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:38,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:36:38,503 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:36:38,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:38,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:36:38,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:36:38,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:36:38,510 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,512 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,513 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:36:38,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:36:38,514 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,515 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:36:38,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,547 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,548 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:38,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:38,550 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,554 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,557 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,557 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:36:38,559 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:36:38,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:36:38,562 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:36:38,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:36:38,570 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,573 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,575 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:38,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:38,576 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,577 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:36:38,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:36:38,579 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:36:38,581 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,582 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:38,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:38,583 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:36:38,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:36:38,586 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:36:38,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:36:38,590 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:36:38,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:36:38,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:38,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:38,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:36:38,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:36:38,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:36:38,618 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:38,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:36:38,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:38,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:38,632 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,645 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,651 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:36:38,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:36:38,655 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:36:38,655 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:36:38,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,681 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:36:38,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,683 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:36:38,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:36:38,684 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:38,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:38,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:36:38,690 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 16 treesize of output 12 [2021-11-19 13:36:38,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:36:38,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:36:38,692 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,694 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:36:38,696 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:38,696 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:36:38,699 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:36:38,700 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:36:38,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,719 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:36:38,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:36:38,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,736 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:38,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:38,740 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:38,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:38,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:36:38,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:36:38,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,767 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:38,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:38,770 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:38,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:38,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,774 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:36:38,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:36:38,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,798 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:38,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:38,802 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:38,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:38,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:36:38,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:38,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:36:38,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:38,837 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:38,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:38,841 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:36:39,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:36:39,974 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:36:39,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 50, 50] total 140 [2021-11-19 13:36:39,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669998100] [2021-11-19 13:36:39,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:36:39,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 140 states [2021-11-19 13:36:39,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:36:39,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2021-11-19 13:36:39,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=20301, Unknown=0, NotChecked=0, Total=20880 [2021-11-19 13:36:39,977 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 140 states, 140 states have (on average 1.0857142857142856) internal successors, (152), 140 states have internal predecessors, (152), 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) [2021-11-19 13:36:55,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:55,389 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2021-11-19 13:36:55,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-19 13:36:55,389 INFO L78 Accepts]: Start accepts. Automaton has has 140 states, 140 states have (on average 1.0857142857142856) internal successors, (152), 140 states have internal predecessors, (152), 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 64 [2021-11-19 13:36:55,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:55,390 INFO L225 Difference]: With dead ends: 105 [2021-11-19 13:36:55,390 INFO L226 Difference]: Without dead ends: 102 [2021-11-19 13:36:55,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 93 SyntacticMatches, 17 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8567 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=1160, Invalid=32146, Unknown=0, NotChecked=0, Total=33306 [2021-11-19 13:36:55,393 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 5333 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 5432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 5333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:55,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 161 Invalid, 5432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 5333 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-19 13:36:55,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-19 13:36:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 91. [2021-11-19 13:36:55,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.0888888888888888) internal successors, (98), 90 states have internal predecessors, (98), 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) [2021-11-19 13:36:55,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2021-11-19 13:36:55,421 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 64 [2021-11-19 13:36:55,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:55,421 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2021-11-19 13:36:55,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 140 states, 140 states have (on average 1.0857142857142856) internal successors, (152), 140 states have internal predecessors, (152), 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) [2021-11-19 13:36:55,422 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2021-11-19 13:36:55,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 13:36:55,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:55,423 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:55,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:55,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1610 [2021-11-19 13:36:55,641 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:36:55,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:55,641 INFO L85 PathProgramCache]: Analyzing trace with hash 634082625, now seen corresponding path program 31 times [2021-11-19 13:36:55,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:36:55,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319089991] [2021-11-19 13:36:55,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:55,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:36:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 67 proven. 77 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 13:36:55,942 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:36:55,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319089991] [2021-11-19 13:36:55,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319089991] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:55,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023564866] [2021-11-19 13:36:55,942 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:36:55,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:36:55,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:36:55,944 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:36:55,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-19 13:36:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:56,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 13:36:56,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 13:36:56,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-19 13:36:56,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023564866] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:36:56,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [827174818] [2021-11-19 13:36:56,643 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:36:56,643 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:36:56,643 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:36:56,643 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:36:56,643 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:36:56,647 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:36:56,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:36:56,649 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:36:56,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:36:56,652 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_64|], 9=[|v_#valid_66|]} [2021-11-19 13:36:56,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:56,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:56,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:56,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:36:56,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:36:56,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:36:56,663 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,665 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:56,698 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:36:56,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:36:56,699 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:36:56,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:36:56,702 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:36:56,707 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,707 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:36:56,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,711 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,712 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:36:56,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:36:56,713 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,714 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:56,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:56,716 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:36:56,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:36:56,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:56,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:36:56,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:56,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:56,728 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,731 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:36:56,735 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,735 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:36:56,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,762 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:36:56,771 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:36:56,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:36:56,775 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:36:56,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:36:56,781 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,782 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:56,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:56,785 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,789 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,790 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:56,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:56,792 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,792 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:36:56,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:36:56,794 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:36:56,796 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,797 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:36:56,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:36:56,799 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,800 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:56,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:56,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:36:56,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:36:56,805 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:36:56,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:36:56,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:56,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:56,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:36:56,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:36:56,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:36:56,833 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:56,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:36:56,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:56,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:56,846 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,865 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:36:56,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:36:56,869 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:36:56,869 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:36:56,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,916 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:36:56,917 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:36:56,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:36:56,919 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:56,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:56,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:36:56,925 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 16 treesize of output 12 [2021-11-19 13:36:56,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:36:56,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:36:56,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,928 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:36:56,930 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:56,930 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:36:56,934 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:36:56,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:36:56,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,950 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:36:56,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:36:56,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,966 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:56,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:56,970 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:56,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:56,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:36:56,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:56,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:36:56,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:56,996 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:56,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:57,000 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:57,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:57,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:57,004 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:36:57,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:57,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:36:57,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,028 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:57,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:57,031 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:57,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:57,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:57,035 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:36:57,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:57,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:36:57,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:57,058 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:57,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:57,063 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:36:57,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:36:57,440 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:36:57,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 40 [2021-11-19 13:36:57,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327003977] [2021-11-19 13:36:57,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:36:57,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-19 13:36:57,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:36:57,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-19 13:36:57,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=1576, Unknown=0, NotChecked=0, Total=1980 [2021-11-19 13:36:57,442 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 40 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 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) [2021-11-19 13:36:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:36:57,853 INFO L93 Difference]: Finished difference Result 180 states and 194 transitions. [2021-11-19 13:36:57,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-19 13:36:57,854 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 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 65 [2021-11-19 13:36:57,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:36:57,854 INFO L225 Difference]: With dead ends: 180 [2021-11-19 13:36:57,855 INFO L226 Difference]: Without dead ends: 92 [2021-11-19 13:36:57,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=652, Invalid=2540, Unknown=0, NotChecked=0, Total=3192 [2021-11-19 13:36:57,855 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:36:57,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 19 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:36:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-19 13:36:57,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-19 13:36:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.0879120879120878) internal successors, (99), 91 states have internal predecessors, (99), 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) [2021-11-19 13:36:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2021-11-19 13:36:57,873 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 65 [2021-11-19 13:36:57,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:36:57,873 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2021-11-19 13:36:57,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 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) [2021-11-19 13:36:57,873 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2021-11-19 13:36:57,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 13:36:57,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:36:57,874 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:36:57,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-19 13:36:58,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1666,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:36:58,095 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:36:58,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:36:58,095 INFO L85 PathProgramCache]: Analyzing trace with hash 821956684, now seen corresponding path program 32 times [2021-11-19 13:36:58,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:36:58,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827059906] [2021-11-19 13:36:58,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:36:58,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:36:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:36:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 55 proven. 89 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:36:58,430 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:36:58,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827059906] [2021-11-19 13:36:58,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827059906] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:36:58,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091687263] [2021-11-19 13:36:58,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:36:58,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:36:58,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:36:58,432 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:36:58,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-19 13:36:58,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-19 13:36:58,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:36:58,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 13:36:58,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:36:59,243 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 66 proven. 78 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:36:59,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:36:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 66 proven. 78 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:36:59,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091687263] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:36:59,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [655377966] [2021-11-19 13:36:59,381 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:36:59,381 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:36:59,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:36:59,382 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:36:59,382 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:36:59,386 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:36:59,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:36:59,387 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:36:59,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:36:59,389 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_65|], 9=[|v_#valid_67|]} [2021-11-19 13:36:59,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:59,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:36:59,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:36:59,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:36:59,397 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,399 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:59,430 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:36:59,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:36:59,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:36:59,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:36:59,433 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,434 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:36:59,436 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,436 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:36:59,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,438 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,439 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:36:59,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:36:59,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:59,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:59,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:36:59,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:36:59,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:59,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:36:59,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:59,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:59,450 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,452 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:36:59,454 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,454 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:36:59,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:59,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:59,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,509 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:36:59,511 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:36:59,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:36:59,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:36:59,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:36:59,522 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,526 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:59,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:59,528 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,529 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:36:59,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:36:59,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:36:59,532 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,533 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:59,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:36:59,535 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,536 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:36:59,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:36:59,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:36:59,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:36:59,541 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:36:59,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:36:59,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:59,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:36:59,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:59,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:36:59,575 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:59,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:36:59,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:36:59,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:36:59,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:36:59,589 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,602 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,608 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:36:59,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:36:59,612 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:36:59,612 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:36:59,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,633 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:36:59,635 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,635 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:36:59,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:36:59,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:36:59,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:36:59,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:36:59,644 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 16 treesize of output 12 [2021-11-19 13:36:59,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:36:59,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:36:59,645 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,646 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:36:59,647 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:36:59,648 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:36:59,650 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:36:59,651 INFO L185 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-11-19 13:36:59,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,668 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-11-19 13:36:59,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 13:36:59,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,686 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:59,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:59,689 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:59,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:59,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:36:59,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:36:59,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,715 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:59,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:59,719 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:59,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:59,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,722 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:36:59,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,731 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:36:59,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,744 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:59,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:59,748 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:36:59,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:36:59,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,751 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:36:59,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:36:59,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:36:59,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:36:59,775 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:36:59,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:36:59,779 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:37:00,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:37:00,057 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:37:00,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 52 [2021-11-19 13:37:00,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798788610] [2021-11-19 13:37:00,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:37:00,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-19 13:37:00,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:00,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-19 13:37:00,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=2701, Unknown=0, NotChecked=0, Total=3192 [2021-11-19 13:37:00,059 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand has 52 states, 52 states have (on average 1.25) internal successors, (65), 52 states have internal predecessors, (65), 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) [2021-11-19 13:37:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:00,569 INFO L93 Difference]: Finished difference Result 123 states and 135 transitions. [2021-11-19 13:37:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-19 13:37:00,569 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.25) internal successors, (65), 52 states have internal predecessors, (65), 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 66 [2021-11-19 13:37:00,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:00,570 INFO L225 Difference]: With dead ends: 123 [2021-11-19 13:37:00,570 INFO L226 Difference]: Without dead ends: 70 [2021-11-19 13:37:00,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 166 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1584 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=948, Invalid=4022, Unknown=0, NotChecked=0, Total=4970 [2021-11-19 13:37:00,571 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:00,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 17 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:37:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-19 13:37:00,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-19 13:37:00,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.0724637681159421) internal successors, (74), 69 states have internal predecessors, (74), 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) [2021-11-19 13:37:00,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2021-11-19 13:37:00,583 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 66 [2021-11-19 13:37:00,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:00,584 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2021-11-19 13:37:00,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.25) internal successors, (65), 52 states have internal predecessors, (65), 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) [2021-11-19 13:37:00,584 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2021-11-19 13:37:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-19 13:37:00,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:00,584 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:00,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:00,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1721,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:00,785 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:37:00,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:00,785 INFO L85 PathProgramCache]: Analyzing trace with hash -583338298, now seen corresponding path program 33 times [2021-11-19 13:37:00,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:00,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915958148] [2021-11-19 13:37:00,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:00,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:07,714 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:07,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915958148] [2021-11-19 13:37:07,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915958148] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:37:07,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763071222] [2021-11-19 13:37:07,715 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:37:07,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:07,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:07,716 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:07,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-19 13:37:07,815 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:37:07,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:37:07,819 WARN L261 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 199 conjunts are in the unsatisfiable core [2021-11-19 13:37:07,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:15,059 INFO L354 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2021-11-19 13:37:15,059 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 41 treesize of output 20 [2021-11-19 13:37:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-19 13:37:15,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:37,491 WARN L227 SmtUtils]: Spent 7.74s on a formula simplification. DAG size of input: 1166 DAG size of output: 638 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:37:37,493 INFO L354 Elim1Store]: treesize reduction 2499, result has 38.6 percent of original size [2021-11-19 13:37:37,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 206 treesize of output 1602 [2021-11-19 13:38:27,615 INFO L354 Elim1Store]: treesize reduction 4023, result has 1.2 percent of original size [2021-11-19 13:38:27,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 205 treesize of output 77 [2021-11-19 13:38:27,850 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-19 13:38:27,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763071222] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:38:27,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1390815878] [2021-11-19 13:38:27,851 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:38:27,852 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:38:27,852 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:38:27,852 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:38:27,852 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:38:27,865 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:38:27,866 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:38:27,867 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:27,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:38:27,871 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_67|], 9=[|v_#valid_69|]} [2021-11-19 13:38:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:27,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:38:27,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,880 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:38:27,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:38:27,882 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:27,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:27,884 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:27,913 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:38:27,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:38:27,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:38:27,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:38:27,917 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:27,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:27,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:38:27,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:27,921 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:38:27,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,923 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,924 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:27,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:27,929 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,930 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:27,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:27,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:38:27,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:38:27,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:27,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:38:27,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:27,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:27,940 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:27,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:27,942 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:38:27,944 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:27,944 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:38:27,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:27,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:27,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:27,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:27,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:27,966 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,968 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:27,971 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:38:27,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:38:27,974 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:38:27,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:38:27,981 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,983 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,983 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:27,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:27,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,985 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:38:27,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:38:27,986 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:38:27,987 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,988 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:27,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:27,989 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,990 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:27,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:27,991 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:38:27,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:38:27,993 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:27,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:27,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:38:27,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:38:28,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:28,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:28,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:38:28,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:38:28,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:38:28,015 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:28,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:28,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:38:28,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:28,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:28,026 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:28,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,034 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,037 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:38:28,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:38:28,040 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:38:28,040 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:38:28,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,055 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:38:28,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:28,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:28,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:38:28,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:38:28,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:28,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:28,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:38:28,062 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 16 treesize of output 12 [2021-11-19 13:38:28,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:38:28,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:38:28,063 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:28,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,064 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:38:28,066 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:28,066 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:38:28,068 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:38:28,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:38:28,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,079 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:38:28,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:38:28,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,091 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:28,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:28,093 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:28,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:28,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:38:28,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:38:28,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,111 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:28,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:28,114 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:28,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:28,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,116 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:38:28,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:38:28,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,132 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:28,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:28,135 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:28,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:28,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,138 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:38:28,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:28,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:38:28,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:28,154 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:28,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:28,158 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:38:29,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:38:29,405 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:38:29,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 54, 54] total 154 [2021-11-19 13:38:29,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532214704] [2021-11-19 13:38:29,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:38:29,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 154 states [2021-11-19 13:38:29,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:38:29,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2021-11-19 13:38:29,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=24466, Unknown=0, NotChecked=0, Total=25122 [2021-11-19 13:38:29,408 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand has 154 states, 154 states have (on average 1.077922077922078) internal successors, (166), 154 states have internal predecessors, (166), 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) [2021-11-19 13:38:49,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:49,182 INFO L93 Difference]: Finished difference Result 113 states and 120 transitions. [2021-11-19 13:38:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-19 13:38:49,183 INFO L78 Accepts]: Start accepts. Automaton has has 154 states, 154 states have (on average 1.077922077922078) internal successors, (166), 154 states have internal predecessors, (166), 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 69 [2021-11-19 13:38:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:49,183 INFO L225 Difference]: With dead ends: 113 [2021-11-19 13:38:49,183 INFO L226 Difference]: Without dead ends: 110 [2021-11-19 13:38:49,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 100 SyntacticMatches, 16 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9939 ImplicationChecksByTransitivity, 37.9s TimeCoverageRelationStatistics Valid=1311, Invalid=38091, Unknown=0, NotChecked=0, Total=39402 [2021-11-19 13:38:49,185 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 6870 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 6992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 6870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:49,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 193 Invalid, 6992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 6870 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-11-19 13:38:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-19 13:38:49,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2021-11-19 13:38:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.0824742268041236) internal successors, (105), 97 states have internal predecessors, (105), 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) [2021-11-19 13:38:49,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2021-11-19 13:38:49,207 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 69 [2021-11-19 13:38:49,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:49,208 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2021-11-19 13:38:49,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 154 states, 154 states have (on average 1.077922077922078) internal successors, (166), 154 states have internal predecessors, (166), 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) [2021-11-19 13:38:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2021-11-19 13:38:49,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 13:38:49,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:49,209 INFO L514 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:49,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:49,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1776 [2021-11-19 13:38:49,429 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:38:49,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:49,430 INFO L85 PathProgramCache]: Analyzing trace with hash 192508960, now seen corresponding path program 34 times [2021-11-19 13:38:49,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:38:49,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861802070] [2021-11-19 13:38:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:49,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:38:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:49,769 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 79 proven. 90 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-19 13:38:49,769 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:38:49,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861802070] [2021-11-19 13:38:49,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861802070] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:49,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166171653] [2021-11-19 13:38:49,769 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:38:49,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:38:49,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:38:49,771 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:38:49,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-19 13:38:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:49,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-19 13:38:49,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:50,386 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 91 proven. 78 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-19 13:38:50,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 91 proven. 78 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-19 13:38:50,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166171653] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:38:50,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [16872061] [2021-11-19 13:38:50,560 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:38:50,560 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:38:50,561 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:38:50,561 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:38:50,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:38:50,565 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:38:50,566 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:50,567 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:38:50,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:38:50,571 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_69|], 9=[|v_#valid_71|]} [2021-11-19 13:38:50,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:50,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:50,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:50,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:38:50,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:38:50,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:38:50,583 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:50,620 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:38:50,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:38:50,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:38:50,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:38:50,624 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,627 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:38:50,630 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,630 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:38:50,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,634 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,635 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:50,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:50,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:50,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:50,639 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:38:50,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:38:50,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:50,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:38:50,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:50,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:50,652 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,655 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:38:50,659 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,659 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:38:50,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,688 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,693 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,696 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:50,698 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:38:50,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:38:50,701 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:38:50,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:38:50,708 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,709 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:50,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:50,713 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,718 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:50,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:50,719 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:50,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:50,722 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:38:50,724 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,725 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,725 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:50,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:50,726 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:38:50,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:38:50,729 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:38:50,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:38:50,733 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:38:50,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:38:50,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:50,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:50,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:38:50,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:38:50,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:38:50,763 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:50,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:38:50,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:50,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:50,780 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,794 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,800 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:38:50,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:38:50,804 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:38:50,805 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:38:50,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,828 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:38:50,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:38:50,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:38:50,832 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:50,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:50,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:38:50,838 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 16 treesize of output 12 [2021-11-19 13:38:50,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:38:50,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:38:50,840 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,841 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:38:50,843 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:50,843 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:38:50,847 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:38:50,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:38:50,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,864 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:38:50,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:38:50,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,882 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:50,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:50,886 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:50,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:50,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,889 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:38:50,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:38:50,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,931 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:50,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:50,935 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:50,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:50,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:38:50,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:38:50,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,962 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:50,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:50,966 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:50,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:50,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,970 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:38:50,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:50,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:38:50,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:50,995 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:50,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:51,000 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:38:51,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:38:51,402 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:38:51,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 43 [2021-11-19 13:38:51,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988761097] [2021-11-19 13:38:51,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:38:51,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-19 13:38:51,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:38:51,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-19 13:38:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=1794, Unknown=0, NotChecked=0, Total=2256 [2021-11-19 13:38:51,404 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 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) [2021-11-19 13:38:51,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:51,900 INFO L93 Difference]: Finished difference Result 194 states and 208 transitions. [2021-11-19 13:38:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-19 13:38:51,906 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 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) Word has length 70 [2021-11-19 13:38:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:51,907 INFO L225 Difference]: With dead ends: 194 [2021-11-19 13:38:51,908 INFO L226 Difference]: Without dead ends: 99 [2021-11-19 13:38:51,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=750, Invalid=2910, Unknown=0, NotChecked=0, Total=3660 [2021-11-19 13:38:51,909 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:51,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 23 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:38:51,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-19 13:38:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-19 13:38:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.0816326530612246) internal successors, (106), 98 states have internal predecessors, (106), 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) [2021-11-19 13:38:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 106 transitions. [2021-11-19 13:38:51,938 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 106 transitions. Word has length 70 [2021-11-19 13:38:51,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:51,939 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 106 transitions. [2021-11-19 13:38:51,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 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) [2021-11-19 13:38:51,939 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 106 transitions. [2021-11-19 13:38:51,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-19 13:38:51,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:51,939 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:51,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:52,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1831 [2021-11-19 13:38:52,140 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:38:52,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:52,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1552476149, now seen corresponding path program 35 times [2021-11-19 13:38:52,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:38:52,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634322488] [2021-11-19 13:38:52,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:52,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:38:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:38:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 66 proven. 103 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-19 13:38:52,505 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:38:52,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634322488] [2021-11-19 13:38:52,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634322488] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:38:52,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028946485] [2021-11-19 13:38:52,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:38:52,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:38:52,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:38:52,507 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:38:52,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-19 13:38:52,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-19 13:38:52,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:38:52,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-19 13:38:52,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:38:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 78 proven. 91 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-19 13:38:53,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:38:53,565 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 78 proven. 91 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-11-19 13:38:53,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028946485] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:38:53,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1868676224] [2021-11-19 13:38:53,566 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:38:53,570 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:38:53,571 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:38:53,571 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:38:53,571 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:38:53,575 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:38:53,576 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:38:53,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:53,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:38:53,582 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_70|], 9=[|v_#valid_72|]} [2021-11-19 13:38:53,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:53,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:53,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:53,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:38:53,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:38:53,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:38:53,593 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,595 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:53,627 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:38:53,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:38:53,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:38:53,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:38:53,630 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,632 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:38:53,633 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,634 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:38:53,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,636 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:53,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:53,638 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,638 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:53,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:53,639 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:38:53,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:38:53,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:53,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:38:53,647 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:53,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:53,648 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,650 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-19 13:38:53,652 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,653 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:132, output treesize:134 [2021-11-19 13:38:53,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,671 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:38:53,687 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:53,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-19 13:38:53,691 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-19 13:38:53,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 13:38:53,711 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,712 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:53,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:53,716 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,719 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,720 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:53,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:53,722 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,723 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 13:38:53,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:38:53,725 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,725 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 13:38:53,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:38:53,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:38:53,729 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,730 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,731 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:53,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:38:53,732 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:38:53,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-11-19 13:38:53,735 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 13:38:53,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 306 [2021-11-19 13:38:53,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:53,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:53,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2021-11-19 13:38:53,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:38:53,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 13:38:53,761 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:38:53,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:38:53,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:53,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:38:53,774 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,786 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,792 INFO L180 QuantifierPusher]: treesize reduction 75, result has 79.2 percent of original size [2021-11-19 13:38:53,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-19 13:38:53,794 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:38:53,794 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:368, output treesize:297 [2021-11-19 13:38:53,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,809 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:38:53,810 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,811 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:38:53,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:38:53,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:38:53,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:38:53,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:38:53,817 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 16 treesize of output 12 [2021-11-19 13:38:53,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:38:53,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:38:53,819 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,819 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:38:53,821 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:38:53,821 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:38:53,823 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:38:53,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:38:53,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,834 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:38:53,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:38:53,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,845 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:53,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:53,848 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:53,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:53,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:38:53,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:38:53,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,878 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:53,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:53,880 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:53,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:53,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,883 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:38:53,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:38:53,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,898 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:53,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:53,901 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:38:53,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:38:53,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,903 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:38:53,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:38:53,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:38:53,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:38:53,937 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:38:53,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:38:53,940 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:38:54,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:38:54,230 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:38:54,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 56 [2021-11-19 13:38:54,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981834096] [2021-11-19 13:38:54,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:38:54,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-19 13:38:54,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:38:54,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-19 13:38:54,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=3098, Unknown=0, NotChecked=0, Total=3660 [2021-11-19 13:38:54,233 INFO L87 Difference]: Start difference. First operand 99 states and 106 transitions. Second operand has 56 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 56 states have internal predecessors, (83), 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) [2021-11-19 13:38:54,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:38:54,767 INFO L93 Difference]: Finished difference Result 132 states and 144 transitions. [2021-11-19 13:38:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-19 13:38:54,767 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 56 states have internal predecessors, (83), 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 71 [2021-11-19 13:38:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:38:54,768 INFO L225 Difference]: With dead ends: 132 [2021-11-19 13:38:54,768 INFO L226 Difference]: Without dead ends: 75 [2021-11-19 13:38:54,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 179 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1828 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1089, Invalid=4611, Unknown=0, NotChecked=0, Total=5700 [2021-11-19 13:38:54,769 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:38:54,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 11 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:38:54,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-19 13:38:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-19 13:38:54,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.0675675675675675) internal successors, (79), 74 states have internal predecessors, (79), 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) [2021-11-19 13:38:54,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2021-11-19 13:38:54,792 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 71 [2021-11-19 13:38:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:38:54,793 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2021-11-19 13:38:54,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 56 states have internal predecessors, (83), 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) [2021-11-19 13:38:54,793 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2021-11-19 13:38:54,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-19 13:38:54,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:38:54,794 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:38:54,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-19 13:38:55,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1886,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:38:55,015 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:38:55,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:38:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash 966360317, now seen corresponding path program 36 times [2021-11-19 13:38:55,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:38:55,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436801418] [2021-11-19 13:38:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:38:55,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:38:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:39:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 6 proven. 449 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:39:03,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:39:03,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436801418] [2021-11-19 13:39:03,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436801418] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:39:03,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677027045] [2021-11-19 13:39:03,558 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:39:03,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:39:03,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:39:03,566 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:39:03,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-19 13:39:03,672 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:39:03,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:39:03,676 WARN L261 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 215 conjunts are in the unsatisfiable core [2021-11-19 13:39:03,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:39:12,583 INFO L354 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2021-11-19 13:39:12,583 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 41 treesize of output 20 [2021-11-19 13:39:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 13:39:12,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:39:44,438 WARN L227 SmtUtils]: Spent 11.26s on a formula simplification. DAG size of input: 1367 DAG size of output: 743 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:39:44,441 INFO L354 Elim1Store]: treesize reduction 2954, result has 38.5 percent of original size [2021-11-19 13:39:44,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 223 treesize of output 1878 [2021-11-19 13:41:59,681 INFO L354 Elim1Store]: treesize reduction 4748, result has 1.1 percent of original size [2021-11-19 13:41:59,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 222 treesize of output 83 [2021-11-19 13:41:59,923 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 13:41:59,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677027045] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:59,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [644680028] [2021-11-19 13:41:59,924 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:41:59,924 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:41:59,924 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:41:59,924 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:41:59,924 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:41:59,927 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:41:59,927 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:59,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:41:59,928 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:59,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:41:59,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:41:59,931 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_72|], 9=[|v_#valid_74|]} [2021-11-19 13:41:59,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:59,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:59,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:41:59,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:41:59,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:41:59,939 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:41:59,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:41:59,940 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:59,964 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:41:59,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:41:59,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:41:59,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:41:59,967 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:41:59,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:41:59,969 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:41:59,970 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:41:59,970 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:41:59,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:59,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:59,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:41:59,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:41:59,974 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:59,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,975 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:59,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:41:59,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:41:59,976 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:59,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:41:59,977 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:41:59,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:59,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:41:59,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:41:59,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:41:59,984 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:41:59,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:41:59,986 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:59,987 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:41:59,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:41:59,988 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:41:59,989 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:41:59,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:41:59,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:41:59,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,007 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,007 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:00,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:00,010 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,012 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,013 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:42:00,014 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:42:00,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:42:00,016 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:42:00,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:42:00,021 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,023 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:00,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:00,024 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,024 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:42:00,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:42:00,026 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:42:00,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:00,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:00,029 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,030 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:42:00,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:42:00,031 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:42:00,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:42:00,033 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:42:00,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:42:00,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:00,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:42:00,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:42:00,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:42:00,049 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:00,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:00,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:00,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:42:00,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:42:00,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:42:00,060 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:00,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,068 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,071 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:42:00,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:42:00,074 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:42:00,074 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:42:00,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,090 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:42:00,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:42:00,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:42:00,092 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:00,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:00,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:42:00,096 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 16 treesize of output 12 [2021-11-19 13:42:00,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:42:00,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:42:00,098 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:00,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,099 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:42:00,100 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:42:00,100 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:42:00,102 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:42:00,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:42:00,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,112 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:42:00,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:42:00,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,137 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:00,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:00,140 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:00,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:00,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:42:00,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:42:00,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,160 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:00,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:00,163 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:00,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:00,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:42:00,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:42:00,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,179 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:00,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:00,182 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:00,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:00,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,184 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:42:00,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:00,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:42:00,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:00,205 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:00,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:00,209 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:42:01,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:42:01,549 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:42:01,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 58, 58] total 162 [2021-11-19 13:42:01,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654296649] [2021-11-19 13:42:01,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:42:01,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2021-11-19 13:42:01,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:42:01,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2021-11-19 13:42:01,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=647, Invalid=27075, Unknown=0, NotChecked=0, Total=27722 [2021-11-19 13:42:01,552 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand has 162 states, 162 states have (on average 1.0740740740740742) internal successors, (174), 162 states have internal predecessors, (174), 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) [2021-11-19 13:42:25,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:25,326 INFO L93 Difference]: Finished difference Result 121 states and 128 transitions. [2021-11-19 13:42:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-19 13:42:25,326 INFO L78 Accepts]: Start accepts. Automaton has has 162 states, 162 states have (on average 1.0740740740740742) internal successors, (174), 162 states have internal predecessors, (174), 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 74 [2021-11-19 13:42:25,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:25,327 INFO L225 Difference]: With dead ends: 121 [2021-11-19 13:42:25,327 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 13:42:25,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 110 SyntacticMatches, 18 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9670 ImplicationChecksByTransitivity, 49.9s TimeCoverageRelationStatistics Valid=1438, Invalid=43718, Unknown=0, NotChecked=0, Total=45156 [2021-11-19 13:42:25,331 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 7963 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 8079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 7963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:25,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 213 Invalid, 8079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 7963 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2021-11-19 13:42:25,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 13:42:25,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 105. [2021-11-19 13:42:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.0769230769230769) internal successors, (112), 104 states have internal predecessors, (112), 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) [2021-11-19 13:42:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 112 transitions. [2021-11-19 13:42:25,357 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 112 transitions. Word has length 74 [2021-11-19 13:42:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:25,358 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 112 transitions. [2021-11-19 13:42:25,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 1.0740740740740742) internal successors, (174), 162 states have internal predecessors, (174), 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) [2021-11-19 13:42:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 112 transitions. [2021-11-19 13:42:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-19 13:42:25,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:25,359 INFO L514 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:25,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2021-11-19 13:42:25,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1941,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:42:25,587 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:42:25,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:25,587 INFO L85 PathProgramCache]: Analyzing trace with hash 2078588577, now seen corresponding path program 37 times [2021-11-19 13:42:25,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:42:25,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106559533] [2021-11-19 13:42:25,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:25,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:42:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:25,980 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 92 proven. 104 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-11-19 13:42:25,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:42:25,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106559533] [2021-11-19 13:42:25,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106559533] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:25,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570556484] [2021-11-19 13:42:25,981 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 13:42:25,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:42:25,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:42:25,982 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:42:25,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-19 13:42:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:26,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-19 13:42:26,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 105 proven. 91 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-11-19 13:42:26,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 105 proven. 91 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-11-19 13:42:26,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570556484] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:42:26,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [334286983] [2021-11-19 13:42:26,796 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:42:26,796 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:42:26,796 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:42:26,796 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:42:26,796 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:42:26,800 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:42:26,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:42:26,802 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:42:26,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:42:26,806 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_74|], 9=[|v_#valid_76|]} [2021-11-19 13:42:26,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:26,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:26,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:26,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:42:26,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:42:26,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:42:26,818 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:26,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:26,821 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:26,855 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:42:26,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:42:26,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:42:26,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:42:26,859 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:26,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:26,862 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:42:26,864 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:42:26,865 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:42:26,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,868 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:26,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:42:26,871 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,872 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:42:26,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:42:26,873 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,874 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:42:26,876 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:42:26,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:26,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:42:26,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:42:26,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:42:26,886 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:26,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:26,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,891 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:42:26,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:42:26,893 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:42:26,893 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:42:26,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:26,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:26,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:26,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,923 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,927 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,930 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:42:26,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:42:26,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:42:26,935 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:42:26,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:42:26,941 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:26,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:26,945 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,949 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:42:26,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:42:26,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,952 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:26,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:26,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:42:26,956 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,956 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:26,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:26,958 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:42:26,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:42:26,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:42:26,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:42:26,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:26,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:42:26,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:42:26,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:26,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:42:26,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:42:26,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:26,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:42:26,988 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:26,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:26,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:27,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:42:27,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:42:27,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:42:27,002 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:27,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,010 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,014 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:42:27,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:42:27,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:42:27,016 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:42:27,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,039 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:42:27,040 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:27,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:27,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:42:27,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:42:27,042 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:27,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:27,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:42:27,047 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 16 treesize of output 12 [2021-11-19 13:42:27,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:42:27,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:42:27,048 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:27,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,049 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:42:27,050 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:42:27,050 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:42:27,053 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:42:27,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-19 13:42:27,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,069 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-11-19 13:42:27,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-19 13:42:27,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,081 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:27,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:27,084 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:27,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:27,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,087 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:42:27,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:42:27,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,111 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:27,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:27,119 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:27,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:27,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:42:27,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:42:27,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,146 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:27,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:27,150 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:27,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:27,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:42:27,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:27,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:42:27,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:27,183 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:27,184 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:27,187 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:42:27,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:42:27,511 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:42:27,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 46 [2021-11-19 13:42:27,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538992556] [2021-11-19 13:42:27,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:42:27,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-19 13:42:27,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:42:27,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-19 13:42:27,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550 [2021-11-19 13:42:27,512 INFO L87 Difference]: Start difference. First operand 105 states and 112 transitions. Second operand has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 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) [2021-11-19 13:42:28,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:28,038 INFO L93 Difference]: Finished difference Result 208 states and 222 transitions. [2021-11-19 13:42:28,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-19 13:42:28,039 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 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) Word has length 75 [2021-11-19 13:42:28,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:28,039 INFO L225 Difference]: With dead ends: 208 [2021-11-19 13:42:28,039 INFO L226 Difference]: Without dead ends: 106 [2021-11-19 13:42:28,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 998 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=855, Invalid=3305, Unknown=0, NotChecked=0, Total=4160 [2021-11-19 13:42:28,040 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:28,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:42:28,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-19 13:42:28,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-11-19 13:42:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.0761904761904761) internal successors, (113), 105 states have internal predecessors, (113), 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) [2021-11-19 13:42:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2021-11-19 13:42:28,065 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 75 [2021-11-19 13:42:28,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:28,066 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2021-11-19 13:42:28,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 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) [2021-11-19 13:42:28,066 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2021-11-19 13:42:28,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 13:42:28,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:28,067 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:28,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:28,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1997 [2021-11-19 13:42:28,277 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:42:28,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash 620586988, now seen corresponding path program 38 times [2021-11-19 13:42:28,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:42:28,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875573073] [2021-11-19 13:42:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:28,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:42:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 78 proven. 118 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2021-11-19 13:42:28,660 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:42:28,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875573073] [2021-11-19 13:42:28,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875573073] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:28,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246139102] [2021-11-19 13:42:28,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:42:28,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:42:28,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:42:28,661 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:42:28,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-19 13:42:28,875 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-19 13:42:28,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:42:28,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-19 13:42:28,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 118 proven. 105 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-11-19 13:42:29,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:42:30,283 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 105 proven. 116 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-11-19 13:42:30,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246139102] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:42:30,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1826325555] [2021-11-19 13:42:30,285 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-19 13:42:30,285 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:42:30,285 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:42:30,285 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:42:30,285 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:42:30,288 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.3 percent of original size [2021-11-19 13:42:30,288 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 13:42:30,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:42:30,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 13:42:30,291 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_75|], 9=[|v_#valid_77|]} [2021-11-19 13:42:30,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:30,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:30,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:30,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-19 13:42:30,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:42:30,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-19 13:42:30,299 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:30,326 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-19 13:42:30,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-19 13:42:30,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:42:30,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:42:30,329 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,330 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-19 13:42:30,332 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,332 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:101 [2021-11-19 13:42:30,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,334 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,335 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:30,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:42:30,336 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,336 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 13:42:30,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-19 13:42:30,338 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 13:42:30,339 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size 122 [2021-11-19 13:42:30,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:30,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-19 13:42:30,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:42:30,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-19 13:42:30,347 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,349 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,350 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-11-19 13:42:30,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-19 13:42:30,351 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,351 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:117 [2021-11-19 13:42:30,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,371 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,371 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:30,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:30,373 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,376 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:42:30,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:42:30,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 253 [2021-11-19 13:42:30,380 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-19 13:42:30,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 13:42:30,384 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,387 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:30,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:30,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 13:42:30,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 13:42:30,389 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 13:42:30,390 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,391 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:30,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 13:42:30,392 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,393 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 13:42:30,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 13:42:30,394 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 13:42:30,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-19 13:42:30,396 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-19 13:42:30,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 13:42:30,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:30,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-19 13:42:30,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:42:30,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 13:42:30,413 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:30,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:42:30,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2021-11-19 13:42:30,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:42:30,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 13:42:30,436 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,448 INFO L180 QuantifierPusher]: treesize reduction 70, result has 79.8 percent of original size [2021-11-19 13:42:30,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-11-19 13:42:30,450 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 13:42:30,450 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:353, output treesize:287 [2021-11-19 13:42:30,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,467 INFO L180 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-11-19 13:42:30,468 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 13:42:30,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 13:42:30,470 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:42:30,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 13:42:30,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:42:30,474 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 16 treesize of output 12 [2021-11-19 13:42:30,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:42:30,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 13:42:30,500 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-19 13:42:30,503 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 13:42:30,504 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2021-11-19 13:42:30,510 INFO L180 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size [2021-11-19 13:42:30,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 13:42:30,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,528 INFO L180 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size [2021-11-19 13:42:30,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-19 13:42:30,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,544 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:30,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:30,548 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:30,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:30,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,552 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:42:30,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:42:30,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,598 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:30,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:30,601 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:30,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:30,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,605 INFO L185 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-11-19 13:42:30,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 13:42:30,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,627 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:30,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:30,631 INFO L180 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-11-19 13:42:30,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-19 13:42:30,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 13:42:30,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:42:30,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 13:42:30,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:42:30,657 INFO L180 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-11-19 13:42:30,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 13:42:30,662 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 13:42:31,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:42:31,006 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 13:42:31,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 33, 33] total 78 [2021-11-19 13:42:31,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637525323] [2021-11-19 13:42:31,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 13:42:31,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-11-19 13:42:31,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:42:31,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-11-19 13:42:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1218, Invalid=5588, Unknown=0, NotChecked=0, Total=6806 [2021-11-19 13:42:31,007 INFO L87 Difference]: Start difference. First operand 106 states and 113 transitions. Second operand has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 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) [2021-11-19 13:42:32,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:42:32,105 INFO L93 Difference]: Finished difference Result 141 states and 153 transitions. [2021-11-19 13:42:32,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-19 13:42:32,106 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 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 76 [2021-11-19 13:42:32,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:42:32,106 INFO L225 Difference]: With dead ends: 141 [2021-11-19 13:42:32,106 INFO L226 Difference]: Without dead ends: 80 [2021-11-19 13:42:32,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4088 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2527, Invalid=10129, Unknown=0, NotChecked=0, Total=12656 [2021-11-19 13:42:32,108 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 38 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:42:32,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 15 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 13:42:32,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-19 13:42:32,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-19 13:42:32,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.0632911392405062) internal successors, (84), 79 states have internal predecessors, (84), 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) [2021-11-19 13:42:32,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions. [2021-11-19 13:42:32,128 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 84 transitions. Word has length 76 [2021-11-19 13:42:32,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:42:32,128 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 84 transitions. [2021-11-19 13:42:32,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 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) [2021-11-19 13:42:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 84 transitions. [2021-11-19 13:42:32,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 13:42:32,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:42:32,128 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:42:32,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-19 13:42:32,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2053 [2021-11-19 13:42:32,329 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:42:32,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:42:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1073466714, now seen corresponding path program 39 times [2021-11-19 13:42:32,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:42:32,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603486744] [2021-11-19 13:42:32,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:42:32,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:42:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:42:41,086 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 18 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:42:41,086 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:42:41,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603486744] [2021-11-19 13:42:41,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603486744] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:42:41,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743904160] [2021-11-19 13:42:41,086 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 13:42:41,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:42:41,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:42:41,087 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:42:41,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40e1c4dd-c5bf-4d16-8573-0ca6ac2bbbfb/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-19 13:42:41,206 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 13:42:41,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:42:41,210 WARN L261 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 231 conjunts are in the unsatisfiable core [2021-11-19 13:42:41,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:42:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-19 13:42:50,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:27,222 WARN L227 SmtUtils]: Spent 15.11s on a formula simplification. DAG size of input: 1584 DAG size of output: 856 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:43:27,225 INFO L354 Elim1Store]: treesize reduction 3447, result has 38.3 percent of original size [2021-11-19 13:43:27,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 28 select indices, 28 select index equivalence classes, 0 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 378 case distinctions, treesize of input 239 treesize of output 2175