./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/standard_copyInit_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_copyInit_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8 --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 dba50526fe277b889497552d450811df3b306fd8692f19f5bf4d016bb218a94b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:03:31,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:03:31,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:03:31,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:03:31,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:03:31,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:03:31,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:03:31,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:03:31,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:03:31,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:03:31,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:03:31,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:03:31,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:03:31,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:03:31,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:03:31,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:03:31,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:03:31,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:03:31,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:03:31,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:03:31,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:03:31,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:03:31,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:03:31,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:03:31,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:03:31,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:03:31,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:03:31,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:03:31,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:03:31,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:03:31,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:03:31,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:03:31,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:03:31,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:03:31,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:03:31,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:03:31,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:03:31,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:03:31,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:03:31,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:03:31,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:03:31,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:03:31,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:03:31,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:03:31,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:03:31,383 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:03:31,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:03:31,383 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:03:31,383 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:03:31,384 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:03:31,390 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:03:31,390 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:03:31,391 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:03:31,391 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:03:31,392 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:03:31,392 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:03:31,392 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:03:31,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:03:31,393 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:03:31,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:03:31,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:03:31,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:03:31,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:03:31,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:03:31,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:03:31,394 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:03:31,394 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:03:31,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:03:31,395 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:03:31,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:03:31,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:03:31,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:03:31,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:03:31,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:03:31,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:03:31,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:03:31,398 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:03:31,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:03:31,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:03:31,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:03:31,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:03:31,399 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_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dba50526fe277b889497552d450811df3b306fd8692f19f5bf4d016bb218a94b [2021-11-07 01:03:31,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:03:31,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:03:31,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:03:31,676 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:03:31,677 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:03:31,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/array-examples/standard_copyInit_ground.i [2021-11-07 01:03:31,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/data/6ae0cf6ef/e166e8be11e94e0ba2e641fc07eb68c3/FLAG31d745cdd [2021-11-07 01:03:32,156 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:03:32,157 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/sv-benchmarks/c/array-examples/standard_copyInit_ground.i [2021-11-07 01:03:32,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/data/6ae0cf6ef/e166e8be11e94e0ba2e641fc07eb68c3/FLAG31d745cdd [2021-11-07 01:03:32,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/data/6ae0cf6ef/e166e8be11e94e0ba2e641fc07eb68c3 [2021-11-07 01:03:32,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:03:32,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:03:32,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:03:32,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:03:32,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:03:32,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1357d1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32, skipping insertion in model container [2021-11-07 01:03:32,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:03:32,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:03:32,734 WARN L228 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_759884ce-f9d8-4249-9f73-f4b2da705037/sv-benchmarks/c/array-examples/standard_copyInit_ground.i[817,830] [2021-11-07 01:03:32,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:03:32,798 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:03:32,810 WARN L228 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_759884ce-f9d8-4249-9f73-f4b2da705037/sv-benchmarks/c/array-examples/standard_copyInit_ground.i[817,830] [2021-11-07 01:03:32,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:03:32,831 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:03:32,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32 WrapperNode [2021-11-07 01:03:32,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:03:32,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:03:32,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:03:32,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:03:32,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:03:32,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:03:32,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:03:32,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:03:32,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:03:32,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:03:32,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:03:32,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:03:32,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (1/1) ... [2021-11-07 01:03:32,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:03:32,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:03:32,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:03:32,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:03:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:03:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:03:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:03:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:03:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:03:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:03:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:03:33,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:03:33,361 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-07 01:03:33,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:03:33 BoogieIcfgContainer [2021-11-07 01:03:33,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:03:33,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:03:33,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:03:33,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:03:33,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:03:32" (1/3) ... [2021-11-07 01:03:33,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87707c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:03:33, skipping insertion in model container [2021-11-07 01:03:33,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:32" (2/3) ... [2021-11-07 01:03:33,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c87707c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:03:33, skipping insertion in model container [2021-11-07 01:03:33,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:03:33" (3/3) ... [2021-11-07 01:03:33,380 INFO L111 eAbstractionObserver]: Analyzing ICFG standard_copyInit_ground.i [2021-11-07 01:03:33,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:03:33,386 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:03:33,464 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:03:33,471 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 [2021-11-07 01:03:33,472 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:03:33,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:33,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:03:33,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:33,491 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:03:33,492 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:03:33,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:33,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1658188629, now seen corresponding path program 1 times [2021-11-07 01:03:33,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:03:33,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865150371] [2021-11-07 01:03:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:33,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:03:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:33,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:33,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:03:33,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865150371] [2021-11-07 01:03:33,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865150371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:33,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:33,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:03:33,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757342198] [2021-11-07 01:03:33,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:03:33,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:03:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:03:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:03:33,713 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:33,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:33,745 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2021-11-07 01:03:33,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:03:33,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-11-07 01:03:33,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:33,757 INFO L225 Difference]: With dead ends: 18 [2021-11-07 01:03:33,757 INFO L226 Difference]: Without dead ends: 10 [2021-11-07 01:03:33,760 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:03:33,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-07 01:03:33,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-07 01:03:33,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-11-07 01:03:33,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2021-11-07 01:03:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:33,794 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-07 01:03:33,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:33,795 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-07 01:03:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:03:33,795 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:33,796 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:33,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:03:33,797 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:03:33,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:33,799 INFO L85 PathProgramCache]: Analyzing trace with hash 972767124, now seen corresponding path program 1 times [2021-11-07 01:03:33,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:03:33,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580440027] [2021-11-07 01:03:33,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:33,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:03:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:03:33,858 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:03:33,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580440027] [2021-11-07 01:03:33,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580440027] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:03:33,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062058794] [2021-11-07 01:03:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:33,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:03:33,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:03:33,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:03:33,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:03:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:33,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:03:33,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:34,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:03:34,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:34,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:03:34,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062058794] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:03:34,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [894641411] [2021-11-07 01:03:34,107 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:03:34,107 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:03:34,112 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:03:34,118 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:03:34,118 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:03:34,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,163 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:34,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:03:34,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:34,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:03:34,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 01:03:34,210 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 36=[|v_#valid_29|]} [2021-11-07 01:03:34,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-07 01:03:34,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:34,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:34,284 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:34,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:34,373 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,467 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:03:34,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2021-11-07 01:03:34,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:03:34,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:03:34,477 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:34,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:34,507 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-07 01:03:34,515 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:34,516 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:152, output treesize:118 [2021-11-07 01:03:34,525 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-07 01:03:34,544 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:34,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 01:03:34,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 01:03:34,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,577 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 28 treesize of output 30 [2021-11-07 01:03:34,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:03:34,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:03:34,590 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:34,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:34,649 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-11-07 01:03:34,655 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:34,656 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:129, output treesize:125 [2021-11-07 01:03:34,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:34,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:34,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:34,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,853 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:34,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,872 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:34,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:34,880 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:34,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 01:03:34,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-07 01:03:34,894 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:34,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-07 01:03:34,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 324 [2021-11-07 01:03:34,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,969 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 40 treesize of output 45 [2021-11-07 01:03:34,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:03:34,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:03:34,975 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:34,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:34,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-11-07 01:03:34,997 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:34,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:35,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:35,001 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,048 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,089 INFO L180 QuantifierPusher]: treesize reduction 94, result has 75.6 percent of original size [2021-11-07 01:03:35,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 01:03:35,103 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:03:35,104 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:394, output treesize:292 [2021-11-07 01:03:35,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,219 INFO L180 QuantifierPusher]: treesize reduction 36, result has 62.9 percent of original size [2021-11-07 01:03:35,224 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:35,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:03:35,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:03:35,240 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 [2021-11-07 01:03:35,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:03:35,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:03:35,248 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,252 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:03:35,255 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,256 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2021-11-07 01:03:35,270 INFO L180 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size [2021-11-07 01:03:35,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:03:35,278 INFO L180 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size [2021-11-07 01:03:35,288 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:35,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:03:35,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:03:35,325 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-07 01:03:35,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-07 01:03:35,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 01:03:35,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 01:03:35,331 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,341 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:03:35,345 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,346 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-11-07 01:03:35,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,395 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:35,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,399 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:35,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:03:35,401 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:35,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:03:35,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 01:03:35,406 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:35,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:03:35,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-11-07 01:03:35,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:35,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:35,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:35,452 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-07 01:03:35,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2021-11-07 01:03:35,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:35,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:35,464 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,478 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:35,490 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:03:35,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-07 01:03:35,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:35,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:35,495 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,511 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,518 INFO L180 QuantifierPusher]: treesize reduction 88, result has 59.3 percent of original size [2021-11-07 01:03:35,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-07 01:03:35,521 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:03:35,521 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:224, output treesize:128 [2021-11-07 01:03:35,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,583 INFO L180 QuantifierPusher]: treesize reduction 36, result has 65.7 percent of original size [2021-11-07 01:03:35,586 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:35,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:03:35,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 01:03:35,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:35,616 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:03:35,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-07 01:03:35,626 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:35,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:35,630 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:35,634 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:35,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:03:35,638 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:35,639 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2021-11-07 01:03:35,649 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:03:36,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:03:36,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:03:36,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-07 01:03:36,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425012573] [2021-11-07 01:03:36,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:03:36,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:03:36,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:03:36,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:03:36,150 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:36,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:36,189 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-11-07 01:03:36,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:03:36,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:03:36,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:36,191 INFO L225 Difference]: With dead ends: 23 [2021-11-07 01:03:36,191 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 01:03:36,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:03:36,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 01:03:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-07 01:03:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-11-07 01:03:36,195 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2021-11-07 01:03:36,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:36,196 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-11-07 01:03:36,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-07 01:03:36,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:03:36,197 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:36,197 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:36,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 01:03:36,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:03:36,417 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:03:36,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:36,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2036733077, now seen corresponding path program 2 times [2021-11-07 01:03:36,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:03:36,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652483411] [2021-11-07 01:03:36,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:36,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:03:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:03:36,514 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:03:36,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652483411] [2021-11-07 01:03:36,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652483411] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:03:36,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423143507] [2021-11-07 01:03:36,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:03:36,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:03:36,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:03:36,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:03:36,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:03:36,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 01:03:36,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:03:36,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:03:36,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:03:36,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:36,779 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:03:36,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423143507] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:03:36,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [932794753] [2021-11-07 01:03:36,786 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:03:36,787 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:03:36,787 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:03:36,787 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:03:36,787 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:03:36,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,800 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:36,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:03:36,804 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:36,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:03:36,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 01:03:36,814 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 36=[|v_#valid_30|]} [2021-11-07 01:03:36,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-07 01:03:36,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:36,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:36,834 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:36,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:36,840 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,903 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:03:36,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2021-11-07 01:03:36,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:03:36,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:03:36,910 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:36,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:36,917 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-07 01:03:36,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:36,924 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:152, output treesize:118 [2021-11-07 01:03:36,929 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-07 01:03:36,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:36,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 01:03:36,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 01:03:36,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:36,950 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 28 treesize of output 30 [2021-11-07 01:03:36,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:03:36,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:03:36,954 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:36,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:36,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:36,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-11-07 01:03:36,969 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:36,970 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:129, output treesize:125 [2021-11-07 01:03:36,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,067 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,089 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 01:03:37,092 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:37,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-07 01:03:37,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-07 01:03:37,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 324 [2021-11-07 01:03:37,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:37,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:37,131 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 33 treesize of output 35 [2021-11-07 01:03:37,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:37,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:37,135 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:37,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:37,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:37,153 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 40 treesize of output 45 [2021-11-07 01:03:37,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:03:37,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:03:37,158 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,202 INFO L180 QuantifierPusher]: treesize reduction 94, result has 75.6 percent of original size [2021-11-07 01:03:37,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 01:03:37,207 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:03:37,208 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:394, output treesize:292 [2021-11-07 01:03:37,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,265 INFO L180 QuantifierPusher]: treesize reduction 36, result has 62.9 percent of original size [2021-11-07 01:03:37,267 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:03:37,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:03:37,275 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 [2021-11-07 01:03:37,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:03:37,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:03:37,278 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,280 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:03:37,283 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,283 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2021-11-07 01:03:37,288 INFO L180 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size [2021-11-07 01:03:37,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:03:37,292 INFO L180 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size [2021-11-07 01:03:37,294 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:03:37,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:03:37,311 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-07 01:03:37,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-07 01:03:37,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 01:03:37,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 01:03:37,315 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,317 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:03:37,319 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,320 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-11-07 01:03:37,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,351 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:03:37,353 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:03:37,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 01:03:37,356 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,357 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:03:37,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-11-07 01:03:37,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:37,385 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:03:37,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-07 01:03:37,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:37,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:37,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:37,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:37,399 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:37,411 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-07 01:03:37,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2021-11-07 01:03:37,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:37,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:37,416 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,434 INFO L180 QuantifierPusher]: treesize reduction 88, result has 59.3 percent of original size [2021-11-07 01:03:37,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-07 01:03:37,436 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:03:37,436 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:224, output treesize:128 [2021-11-07 01:03:37,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,466 INFO L180 QuantifierPusher]: treesize reduction 36, result has 65.7 percent of original size [2021-11-07 01:03:37,468 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:37,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:03:37,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 01:03:37,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:37,496 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:03:37,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-07 01:03:37,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:37,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:37,499 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:37,502 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:37,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:03:37,504 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:37,504 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2021-11-07 01:03:37,512 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:03:37,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:03:37,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:03:37,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-11-07 01:03:37,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926412714] [2021-11-07 01:03:37,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:03:37,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:03:37,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:03:37,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:03:37,908 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:37,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:37,972 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2021-11-07 01:03:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:03:37,973 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-07 01:03:37,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:37,974 INFO L225 Difference]: With dead ends: 38 [2021-11-07 01:03:37,974 INFO L226 Difference]: Without dead ends: 28 [2021-11-07 01:03:37,974 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:03:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-07 01:03:37,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-07 01:03:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-11-07 01:03:37,980 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14 [2021-11-07 01:03:37,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:37,980 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-11-07 01:03:37,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-11-07 01:03:37,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:03:37,982 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:37,982 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:38,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:38,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-07 01:03:38,197 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:03:38,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:38,197 INFO L85 PathProgramCache]: Analyzing trace with hash -523047541, now seen corresponding path program 3 times [2021-11-07 01:03:38,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:03:38,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744338766] [2021-11-07 01:03:38,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:38,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:03:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:38,353 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-07 01:03:38,354 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:03:38,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744338766] [2021-11-07 01:03:38,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744338766] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:03:38,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784705027] [2021-11-07 01:03:38,354 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 01:03:38,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:03:38,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:03:38,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:03:38,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 01:03:38,436 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 01:03:38,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:03:38,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 01:03:38,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-07 01:03:38,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-07 01:03:38,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784705027] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:03:38,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1974926805] [2021-11-07 01:03:38,811 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:03:38,811 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:03:38,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:03:38,812 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:03:38,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:03:38,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:38,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:03:38,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:38,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:03:38,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 01:03:38,837 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 36=[|v_#valid_31|]} [2021-11-07 01:03:38,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-07 01:03:38,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:38,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:38,859 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:38,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:38,865 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,902 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:03:38,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2021-11-07 01:03:38,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:03:38,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:03:38,915 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:38,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:38,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-07 01:03:38,925 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:38,925 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:152, output treesize:118 [2021-11-07 01:03:38,941 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-07 01:03:38,947 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:38,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 01:03:38,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 01:03:38,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:38,968 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 28 treesize of output 30 [2021-11-07 01:03:38,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:03:38,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:03:38,974 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:38,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:38,982 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:38,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-11-07 01:03:38,988 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:38,988 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:129, output treesize:125 [2021-11-07 01:03:38,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,076 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 01:03:39,086 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:39,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-11-07 01:03:39,096 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-07 01:03:39,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 324 [2021-11-07 01:03:39,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:39,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:39,136 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 33 treesize of output 35 [2021-11-07 01:03:39,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:39,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:39,141 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:39,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:39,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:39,164 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 40 treesize of output 45 [2021-11-07 01:03:39,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:03:39,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:03:39,169 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,208 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,225 INFO L180 QuantifierPusher]: treesize reduction 94, result has 75.6 percent of original size [2021-11-07 01:03:39,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-07 01:03:39,237 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:03:39,238 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:394, output treesize:292 [2021-11-07 01:03:39,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,310 INFO L180 QuantifierPusher]: treesize reduction 36, result has 62.9 percent of original size [2021-11-07 01:03:39,311 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:03:39,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:03:39,320 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 [2021-11-07 01:03:39,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:03:39,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:03:39,322 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,325 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:03:39,328 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,328 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2021-11-07 01:03:39,333 INFO L180 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size [2021-11-07 01:03:39,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:03:39,339 INFO L180 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size [2021-11-07 01:03:39,341 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:03:39,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:03:39,364 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-07 01:03:39,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-07 01:03:39,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 01:03:39,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 01:03:39,369 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,371 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:03:39,374 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,375 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-11-07 01:03:39,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,418 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,420 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:03:39,423 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:03:39,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 01:03:39,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:03:39,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-11-07 01:03:39,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:39,460 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:03:39,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-07 01:03:39,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:39,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:39,464 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:39,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:39,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:39,494 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-07 01:03:39,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2021-11-07 01:03:39,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:39,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:39,498 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,520 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,539 INFO L180 QuantifierPusher]: treesize reduction 88, result has 59.3 percent of original size [2021-11-07 01:03:39,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-07 01:03:39,541 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:03:39,542 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:224, output treesize:128 [2021-11-07 01:03:39,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,583 INFO L180 QuantifierPusher]: treesize reduction 36, result has 65.7 percent of original size [2021-11-07 01:03:39,585 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:39,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:03:39,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 01:03:39,595 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:39,607 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:03:39,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-07 01:03:39,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:39,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:39,610 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:39,613 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:39,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:03:39,617 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:39,617 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2021-11-07 01:03:39,626 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:03:40,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:03:40,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:03:40,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-11-07 01:03:40,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578264936] [2021-11-07 01:03:40,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-07 01:03:40,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:03:40,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-07 01:03:40,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=466, Unknown=0, NotChecked=0, Total=756 [2021-11-07 01:03:40,085 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 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) [2021-11-07 01:03:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:40,220 INFO L93 Difference]: Finished difference Result 68 states and 95 transitions. [2021-11-07 01:03:40,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 01:03:40,220 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 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) Word has length 26 [2021-11-07 01:03:40,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:40,222 INFO L225 Difference]: With dead ends: 68 [2021-11-07 01:03:40,222 INFO L226 Difference]: Without dead ends: 52 [2021-11-07 01:03:40,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=290, Invalid=466, Unknown=0, NotChecked=0, Total=756 [2021-11-07 01:03:40,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-07 01:03:40,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-07 01:03:40,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 51 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) [2021-11-07 01:03:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2021-11-07 01:03:40,238 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 26 [2021-11-07 01:03:40,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:40,239 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2021-11-07 01:03:40,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 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) [2021-11-07 01:03:40,239 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2021-11-07 01:03:40,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 01:03:40,242 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:40,242 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:40,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:40,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-11-07 01:03:40,456 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:03:40,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash -83723829, now seen corresponding path program 4 times [2021-11-07 01:03:40,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:03:40,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753831745] [2021-11-07 01:03:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:40,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:03:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-07 01:03:40,936 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:03:40,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753831745] [2021-11-07 01:03:40,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753831745] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:03:40,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366178167] [2021-11-07 01:03:40,936 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 01:03:40,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:03:40,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:03:40,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:03:40,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 01:03:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:41,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:03:41,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-07 01:03:41,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-07 01:03:42,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366178167] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:03:42,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2104987922] [2021-11-07 01:03:42,129 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:03:42,129 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:03:42,129 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:03:42,130 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:03:42,130 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:03:42,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,137 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:03:42,139 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:03:42,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 01:03:42,148 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 36=[|v_#valid_32|]} [2021-11-07 01:03:42,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-07 01:03:42,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:42,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:42,168 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,211 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:03:42,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 42 [2021-11-07 01:03:42,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:03:42,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:03:42,217 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,222 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-07 01:03:42,225 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,226 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:152, output treesize:118 [2021-11-07 01:03:42,229 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size [2021-11-07 01:03:42,231 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:42,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 01:03:42,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,246 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 33 treesize of output 35 [2021-11-07 01:03:42,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:42,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:42,250 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:03:42,258 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,258 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:136, output treesize:132 [2021-11-07 01:03:42,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,321 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 01:03:42,323 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:42,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-11-07 01:03:42,328 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-07 01:03:42,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-11-07 01:03:42,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,363 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 45 treesize of output 50 [2021-11-07 01:03:42,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:03:42,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:03:42,368 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,383 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 33 treesize of output 35 [2021-11-07 01:03:42,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:42,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:03:42,386 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,412 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,422 INFO L180 QuantifierPusher]: treesize reduction 94, result has 76.0 percent of original size [2021-11-07 01:03:42,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-11-07 01:03:42,450 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:03:42,450 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:399, output treesize:297 [2021-11-07 01:03:42,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,489 INFO L180 QuantifierPusher]: treesize reduction 36, result has 62.9 percent of original size [2021-11-07 01:03:42,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:03:42,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:03:42,497 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 [2021-11-07 01:03:42,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:03:42,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:03:42,500 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:03:42,504 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,504 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:52 [2021-11-07 01:03:42,508 INFO L180 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size [2021-11-07 01:03:42,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:03:42,512 INFO L180 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size [2021-11-07 01:03:42,513 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:03:42,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:03:42,528 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-07 01:03:42,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-07 01:03:42,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 01:03:42,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-07 01:03:42,531 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,533 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:03:42,535 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,535 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2021-11-07 01:03:42,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,554 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,557 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:03:42,562 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:03:42,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 01:03:42,566 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:03:42,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-11-07 01:03:42,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:03:42,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:42,594 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-07 01:03:42,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2021-11-07 01:03:42,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:42,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:03:42,598 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:42,613 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:03:42,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-07 01:03:42,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:42,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:42,616 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,623 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,629 INFO L180 QuantifierPusher]: treesize reduction 88, result has 59.3 percent of original size [2021-11-07 01:03:42,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-07 01:03:42,631 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:03:42,631 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:224, output treesize:128 [2021-11-07 01:03:42,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,653 INFO L180 QuantifierPusher]: treesize reduction 36, result has 65.7 percent of original size [2021-11-07 01:03:42,654 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:03:42,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 01:03:42,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 01:03:42,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:03:42,671 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-07 01:03:42,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-07 01:03:42,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:42,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:03:42,673 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:03:42,675 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:03:42,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:03:42,677 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:03:42,677 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:61 [2021-11-07 01:03:42,683 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:03:43,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:03:43,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:03:43,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-11-07 01:03:43,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763210955] [2021-11-07 01:03:43,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-07 01:03:43,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:03:43,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-07 01:03:43,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1142, Invalid=1510, Unknown=0, NotChecked=0, Total=2652 [2021-11-07 01:03:43,093 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:43,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:43,443 INFO L93 Difference]: Finished difference Result 128 states and 179 transitions. [2021-11-07 01:03:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-07 01:03:43,444 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 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 [2021-11-07 01:03:43,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:43,445 INFO L225 Difference]: With dead ends: 128 [2021-11-07 01:03:43,445 INFO L226 Difference]: Without dead ends: 100 [2021-11-07 01:03:43,447 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1142, Invalid=1510, Unknown=0, NotChecked=0, Total=2652 [2021-11-07 01:03:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-07 01:03:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-11-07 01:03:43,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.0303030303030303) internal successors, (102), 99 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:43,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 102 transitions. [2021-11-07 01:03:43,460 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 102 transitions. Word has length 50 [2021-11-07 01:03:43,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:43,460 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 102 transitions. [2021-11-07 01:03:43,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:43,461 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 102 transitions. [2021-11-07 01:03:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 01:03:43,464 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:43,464 INFO L513 BasicCegarLoop]: trace histogram [46, 46, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:43,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:43,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:03:43,685 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:03:43,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:43,685 INFO L85 PathProgramCache]: Analyzing trace with hash -163597749, now seen corresponding path program 5 times [2021-11-07 01:03:43,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:03:43,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26092800] [2021-11-07 01:03:43,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:43,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:03:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2021-11-07 01:03:44,883 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:03:44,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26092800] [2021-11-07 01:03:44,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26092800] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:03:44,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773281708] [2021-11-07 01:03:44,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:03:44,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:03:44,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:03:44,889 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:03:44,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759884ce-f9d8-4249-9f73-f4b2da705037/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process