./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/condm.c --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_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/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_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/condm.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/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_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/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 6f961be2104ef3ac444088284f7936b105cc31dfbd8617bc6896bf1b51a5f23d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:10:42,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:10:42,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:10:42,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:10:42,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:10:42,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:10:42,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:10:42,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:10:42,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:10:42,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:10:42,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:10:42,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:10:42,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:10:42,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:10:42,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:10:42,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:10:42,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:10:42,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:10:42,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:10:42,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:10:42,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:10:42,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:10:42,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:10:42,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:10:42,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:10:42,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:10:42,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:10:42,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:10:42,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:10:42,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:10:42,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:10:42,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:10:42,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:10:42,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:10:42,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:10:42,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:10:42,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:10:42,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:10:42,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:10:42,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:10:42,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:10:42,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:10:42,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:10:42,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:10:42,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:10:42,323 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:10:42,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:10:42,323 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:10:42,324 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:10:42,324 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:10:42,324 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:10:42,324 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:10:42,326 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:10:42,326 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:10:42,326 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:10:42,327 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:10:42,327 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:10:42,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:10:42,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:10:42,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:10:42,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:10:42,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:10:42,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:10:42,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:10:42,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:10:42,330 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:10:42,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:10:42,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:10:42,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:10:42,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:10:42,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:10:42,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:10:42,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:42,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:10:42,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:10:42,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:10:42,335 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:10:42,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:10:42,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:10:42,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:10:42,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:10:42,337 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_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f961be2104ef3ac444088284f7936b105cc31dfbd8617bc6896bf1b51a5f23d [2021-11-07 02:10:42,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:10:42,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:10:42,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:10:42,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:10:42,600 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:10:42,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/array-fpi/condm.c [2021-11-07 02:10:42,665 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/data/f466f6132/e977da742d244920a51bed6c0c1663e0/FLAGc84c26697 [2021-11-07 02:10:43,199 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:10:43,199 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/sv-benchmarks/c/array-fpi/condm.c [2021-11-07 02:10:43,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/data/f466f6132/e977da742d244920a51bed6c0c1663e0/FLAGc84c26697 [2021-11-07 02:10:43,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/data/f466f6132/e977da742d244920a51bed6c0c1663e0 [2021-11-07 02:10:43,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:10:43,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:10:43,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:43,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:10:43,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:10:43,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d448ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43, skipping insertion in model container [2021-11-07 02:10:43,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:10:43,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:10:43,790 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_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/sv-benchmarks/c/array-fpi/condm.c[588,601] [2021-11-07 02:10:43,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:43,818 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:10:43,830 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_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/sv-benchmarks/c/array-fpi/condm.c[588,601] [2021-11-07 02:10:43,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:43,850 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:10:43,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43 WrapperNode [2021-11-07 02:10:43,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:43,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:43,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:10:43,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:10:43,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:43,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:10:43,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:10:43,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:10:43,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:10:43,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:10:43,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:10:43,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:10:43,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (1/1) ... [2021-11-07 02:10:43,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:43,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:43,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:10:43,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:10:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:10:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:10:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 02:10:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:10:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:10:43,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:10:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 02:10:44,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:10:44,429 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-07 02:10:44,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:44 BoogieIcfgContainer [2021-11-07 02:10:44,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:10:44,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:10:44,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:10:44,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:10:44,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:10:43" (1/3) ... [2021-11-07 02:10:44,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584066b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:44, skipping insertion in model container [2021-11-07 02:10:44,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:43" (2/3) ... [2021-11-07 02:10:44,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584066b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:44, skipping insertion in model container [2021-11-07 02:10:44,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:44" (3/3) ... [2021-11-07 02:10:44,440 INFO L111 eAbstractionObserver]: Analyzing ICFG condm.c [2021-11-07 02:10:44,445 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:10:44,445 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:10:44,492 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:10:44,500 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 02:10:44,500 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:10:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 02:10:44,521 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:44,522 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:44,522 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash -529185191, now seen corresponding path program 1 times [2021-11-07 02:10:44,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:44,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388964821] [2021-11-07 02:10:44,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:44,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:44,753 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 02:10:44,753 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:10:44,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388964821] [2021-11-07 02:10:44,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388964821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:44,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:44,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 02:10:44,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497527922] [2021-11-07 02:10:44,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:10:44,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:10:44,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:10:44,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:10:44,777 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 02:10:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:44,813 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-11-07 02:10:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:10:44,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-11-07 02:10:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:44,822 INFO L225 Difference]: With dead ends: 20 [2021-11-07 02:10:44,822 INFO L226 Difference]: Without dead ends: 10 [2021-11-07 02:10:44,825 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:10:44,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-07 02:10:44,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-07 02:10:44,853 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 02:10:44,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-11-07 02:10:44,855 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2021-11-07 02:10:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:44,855 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-07 02:10:44,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 02:10:44,856 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-07 02:10:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:10:44,856 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:44,857 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:44,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:10:44,857 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:44,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:44,858 INFO L85 PathProgramCache]: Analyzing trace with hash 351199448, now seen corresponding path program 1 times [2021-11-07 02:10:44,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:44,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621185820] [2021-11-07 02:10:44,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:44,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:10:44,925 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:10:44,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621185820] [2021-11-07 02:10:44,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621185820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:44,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:44,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 02:10:44,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906976034] [2021-11-07 02:10:44,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:10:44,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:10:44,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:10:44,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:10:44,930 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:44,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:44,960 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-11-07 02:10:44,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:10:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 02:10:44,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:44,961 INFO L225 Difference]: With dead ends: 21 [2021-11-07 02:10:44,962 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 02:10:44,962 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:10:44,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 02:10:44,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2021-11-07 02:10:44,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:44,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-11-07 02:10:44,967 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2021-11-07 02:10:44,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:44,967 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-07 02:10:44,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:44,968 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-07 02:10:44,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 02:10:44,969 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:44,969 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:44,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 02:10:44,970 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:44,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:44,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1994057592, now seen corresponding path program 1 times [2021-11-07 02:10:44,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:44,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113968339] [2021-11-07 02:10:44,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:44,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:45,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:45,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:10:45,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113968339] [2021-11-07 02:10:45,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113968339] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:10:45,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953285017] [2021-11-07 02:10:45,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:45,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:10:45,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:45,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:10:45,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 02:10:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:46,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 02:10:46,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:46,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-07 02:10:46,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 48 [2021-11-07 02:10:46,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 02:10:46,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-11-07 02:10:46,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 96 [2021-11-07 02:10:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:46,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:47,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2021-11-07 02:10:47,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2021-11-07 02:10:47,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2021-11-07 02:10:47,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-11-07 02:10:47,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2021-11-07 02:10:47,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:47,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953285017] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:10:47,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [493469418] [2021-11-07 02:10:47,698 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 02:10:47,698 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:10:47,703 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:10:47,711 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:10:47,712 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:10:47,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,753 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:47,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:47,756 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:47,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:47,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 02:10:47,773 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 21=[|v_#valid_17|]} [2021-11-07 02:10:47,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:10:47,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:47,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:47,792 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:47,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:47,808 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:10:47,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:10:47,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:10:47,831 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:47,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:47,841 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 02:10:47,845 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:47,845 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 02:10:47,854 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.3 percent of original size [2021-11-07 02:10:47,855 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:47,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:10:47,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:47,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:10:47,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-07 02:10:47,867 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_17|], 15=[|v_#valid_18|]} [2021-11-07 02:10:47,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,914 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 02:10:47,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 02:10:47,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:10:47,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:10:47,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:47,928 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:10:47,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:47,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:47,932 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:47,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:47,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:47,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-07 02:10:47,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:10:47,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:10:47,966 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:47,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:47,975 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-07 02:10:47,986 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:47,987 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:137 [2021-11-07 02:10:47,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,994 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:47,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:47,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:10:47,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-11-07 02:10:48,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:10:48,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:48,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:48,016 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,025 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-07 02:10:48,030 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,031 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:156 [2021-11-07 02:10:48,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,145 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,150 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 02:10:48,158 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:10:48,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-11-07 02:10:48,165 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-11-07 02:10:48,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-11-07 02:10:48,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:10:48,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:48,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:48,209 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 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 02:10:48,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:10:48,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:10:48,234 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,308 INFO L180 QuantifierPusher]: treesize reduction 119, result has 74.2 percent of original size [2021-11-07 02:10:48,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-11-07 02:10:48,314 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:10:48,315 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:470, output treesize:343 [2021-11-07 02:10:48,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,393 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.5 percent of original size [2021-11-07 02:10:48,398 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:48,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:10:48,409 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 02:10:48,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,410 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:48,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:48,411 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,414 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 02:10:48,417 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,417 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2021-11-07 02:10:48,422 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:10:48,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:48,429 INFO L180 QuantifierPusher]: treesize reduction 58, result has 68.8 percent of original size [2021-11-07 02:10:48,431 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:48,433 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:48,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 02:10:48,445 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:48,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,448 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,455 INFO L628 ElimStorePlain]: treesize reduction 10, result has 93.4 percent of original size [2021-11-07 02:10:48,462 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:48,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,464 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,469 INFO L628 ElimStorePlain]: treesize reduction 60, result has 47.4 percent of original size [2021-11-07 02:10:48,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-07 02:10:48,472 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,472 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:178, output treesize:54 [2021-11-07 02:10:48,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,513 INFO L180 QuantifierPusher]: treesize reduction 58, result has 78.9 percent of original size [2021-11-07 02:10:48,517 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:48,519 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:48,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-07 02:10:48,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:48,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,546 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,559 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:48,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,564 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,600 INFO L628 ElimStorePlain]: treesize reduction 18, result has 96.3 percent of original size [2021-11-07 02:10:48,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:48,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:48,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,620 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,631 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:48,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,635 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,654 INFO L628 ElimStorePlain]: treesize reduction 215, result has 48.7 percent of original size [2021-11-07 02:10:48,659 INFO L180 QuantifierPusher]: treesize reduction 95, result has 53.4 percent of original size [2021-11-07 02:10:48,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-07 02:10:48,662 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:10:48,663 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:545, output treesize:109 [2021-11-07 02:10:48,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,708 INFO L180 QuantifierPusher]: treesize reduction 100, result has 56.1 percent of original size [2021-11-07 02:10:48,714 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:48,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:48,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:48,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:10:48,732 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:48,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,735 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,743 INFO L628 ElimStorePlain]: treesize reduction 6, result has 95.9 percent of original size [2021-11-07 02:10:48,749 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:48,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:48,753 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:48,758 INFO L628 ElimStorePlain]: treesize reduction 60, result has 47.4 percent of original size [2021-11-07 02:10:48,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:48,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-07 02:10:48,761 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:48,761 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:174, output treesize:54 [2021-11-07 02:10:48,767 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:10:48,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:48,775 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:10:49,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:10:49,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:10:49,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2021-11-07 02:10:49,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220356666] [2021-11-07 02:10:49,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 02:10:49,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:10:49,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 02:10:49,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-11-07 02:10:49,467 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 19 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 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 02:10:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:50,774 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2021-11-07 02:10:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-07 02:10:50,774 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 02:10:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:50,776 INFO L225 Difference]: With dead ends: 55 [2021-11-07 02:10:50,776 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 02:10:50,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=240, Invalid=1242, Unknown=0, NotChecked=0, Total=1482 [2021-11-07 02:10:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 02:10:50,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 15. [2021-11-07 02:10:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-11-07 02:10:50,784 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 9 [2021-11-07 02:10:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:50,784 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-07 02:10:50,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 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 02:10:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-07 02:10:50,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:10:50,785 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:50,785 INFO L513 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:50,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:50,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:10:50,986 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:50,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:50,986 INFO L85 PathProgramCache]: Analyzing trace with hash -616766840, now seen corresponding path program 2 times [2021-11-07 02:10:50,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:50,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929366591] [2021-11-07 02:10:50,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:50,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:51,093 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:10:51,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929366591] [2021-11-07 02:10:51,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929366591] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:10:51,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964780896] [2021-11-07 02:10:51,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:10:51,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:10:51,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:51,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:10:51,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 02:10:51,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 02:10:51,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:10:51,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:10:51,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:51,293 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:10:51,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:10:51,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964780896] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:10:51,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [684388187] [2021-11-07 02:10:51,353 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 02:10:51,353 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:10:51,353 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:10:51,353 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:10:51,354 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:10:51,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,359 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:51,368 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:51,371 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 02:10:51,373 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 21=[|v_#valid_20|]} [2021-11-07 02:10:51,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:10:51,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:51,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:51,399 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,414 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:10:51,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:10:51,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:10:51,433 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,436 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 02:10:51,442 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,442 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 02:10:51,448 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.3 percent of original size [2021-11-07 02:10:51,449 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:10:51,452 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:10:51,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-07 02:10:51,461 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_20|], 15=[|v_#valid_21|]} [2021-11-07 02:10:51,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,490 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 02:10:51,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 02:10:51,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:10:51,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:10:51,494 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,500 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:10:51,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:51,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:51,504 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-07 02:10:51,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:10:51,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:10:51,536 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-07 02:10:51,546 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,546 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:137 [2021-11-07 02:10:51,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,552 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:10:51,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-11-07 02:10:51,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:10:51,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:51,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:51,574 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,583 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-07 02:10:51,588 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,589 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:156 [2021-11-07 02:10:51,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:10:51,686 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 02:10:51,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-11-07 02:10:51,692 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-11-07 02:10:51,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-11-07 02:10:51,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:10:51,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:51,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:51,731 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 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 02:10:51,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:10:51,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:10:51,754 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,795 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,808 INFO L180 QuantifierPusher]: treesize reduction 119, result has 74.2 percent of original size [2021-11-07 02:10:51,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-11-07 02:10:51,815 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:10:51,815 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:470, output treesize:343 [2021-11-07 02:10:51,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,874 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.5 percent of original size [2021-11-07 02:10:51,876 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:51,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:10:51,884 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 02:10:51,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:51,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:51,886 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 02:10:51,891 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,892 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2021-11-07 02:10:51,896 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:10:51,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:51,903 INFO L180 QuantifierPusher]: treesize reduction 58, result has 68.8 percent of original size [2021-11-07 02:10:51,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 02:10:51,908 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 02:10:51,911 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.1 percent of original size 99 [2021-11-07 02:10:51,919 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:10:51,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:51,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:51,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,927 INFO L628 ElimStorePlain]: treesize reduction 6, result has 95.5 percent of original size [2021-11-07 02:10:51,933 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:10:51,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:51,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:51,936 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,940 INFO L628 ElimStorePlain]: treesize reduction 58, result has 47.3 percent of original size [2021-11-07 02:10:51,941 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.2 percent of original size [2021-11-07 02:10:51,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:51,943 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:51,943 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:150, output treesize:49 [2021-11-07 02:10:51,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:51,969 INFO L180 QuantifierPusher]: treesize reduction 58, result has 79.2 percent of original size [2021-11-07 02:10:51,972 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:51,975 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:51,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:51,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 02:10:51,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:51,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:51,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:51,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:51,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,000 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:52,016 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:52,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,019 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:52,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,044 INFO L628 ElimStorePlain]: treesize reduction 20, result has 95.9 percent of original size [2021-11-07 02:10:52,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:52,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:52,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,057 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:52,068 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:52,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,075 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:52,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,094 INFO L628 ElimStorePlain]: treesize reduction 211, result has 48.9 percent of original size [2021-11-07 02:10:52,098 INFO L180 QuantifierPusher]: treesize reduction 93, result has 54.0 percent of original size [2021-11-07 02:10:52,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-07 02:10:52,101 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:10:52,101 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:541, output treesize:109 [2021-11-07 02:10:52,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,140 INFO L180 QuantifierPusher]: treesize reduction 100, result has 56.1 percent of original size [2021-11-07 02:10:52,143 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:52,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:52,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:52,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:52,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:10:52,156 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:52,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,160 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:52,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,167 INFO L628 ElimStorePlain]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 02:10:52,173 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:52,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:52,176 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:52,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:52,181 INFO L628 ElimStorePlain]: treesize reduction 61, result has 47.0 percent of original size [2021-11-07 02:10:52,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:52,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-07 02:10:52,183 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:52,183 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:174, output treesize:54 [2021-11-07 02:10:52,188 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:10:52,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:52,198 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:10:52,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:10:52,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:10:52,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2021-11-07 02:10:52,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462194841] [2021-11-07 02:10:52,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:10:52,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:10:52,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:10:52,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-11-07 02:10:52,682 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:52,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:52,760 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2021-11-07 02:10:52,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:10:52,760 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 02:10:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:52,761 INFO L225 Difference]: With dead ends: 41 [2021-11-07 02:10:52,761 INFO L226 Difference]: Without dead ends: 26 [2021-11-07 02:10:52,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-11-07 02:10:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-07 02:10:52,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 16. [2021-11-07 02:10:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:52,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-07 02:10:52,766 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2021-11-07 02:10:52,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:52,767 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-07 02:10:52,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:52,767 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-07 02:10:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 02:10:52,767 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:52,767 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:52,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 02:10:52,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-07 02:10:52,987 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:52,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:52,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1403574905, now seen corresponding path program 3 times [2021-11-07 02:10:52,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:52,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708980361] [2021-11-07 02:10:52,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:52,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:53,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:53,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:10:53,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708980361] [2021-11-07 02:10:53,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708980361] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:10:53,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160354186] [2021-11-07 02:10:53,059 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 02:10:53,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:10:53,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:53,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:10:53,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 02:10:53,171 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 02:10:53,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:10:53,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:10:53,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:53,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:53,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:53,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160354186] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:10:53,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [71514513] [2021-11-07 02:10:53,298 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 02:10:53,299 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:10:53,299 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:10:53,299 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:10:53,299 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:10:53,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:53,307 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:53,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 02:10:53,311 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 21=[|v_#valid_23|]} [2021-11-07 02:10:53,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:10:53,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:53,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:53,324 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,327 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:10:53,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:10:53,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:10:53,347 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 02:10:53,354 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,354 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 02:10:53,359 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.3 percent of original size [2021-11-07 02:10:53,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:10:53,362 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:10:53,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-07 02:10:53,370 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_23|], 15=[|v_#valid_24|]} [2021-11-07 02:10:53,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,397 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 02:10:53,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 02:10:53,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:10:53,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:10:53,406 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,414 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:10:53,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:53,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:53,416 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,426 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-07 02:10:53,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:10:53,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:10:53,447 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,452 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-07 02:10:53,459 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,459 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:137 [2021-11-07 02:10:53,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,464 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 02:10:53,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 02:10:53,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:10:53,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:10:53,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:10:53,485 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,490 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-07 02:10:53,495 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,495 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:148, output treesize:144 [2021-11-07 02:10:53,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,564 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,569 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 02:10:53,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:10:53,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-11-07 02:10:53,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-07 02:10:53,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 376 [2021-11-07 02:10:53,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 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 02:10:53,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 02:10:53,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 02:10:53,637 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:53,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:10:53,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:53,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:10:53,657 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,746 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,773 INFO L180 QuantifierPusher]: treesize reduction 114, result has 74.8 percent of original size [2021-11-07 02:10:53,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-11-07 02:10:53,782 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:10:53,782 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:460, output treesize:338 [2021-11-07 02:10:53,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,861 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.5 percent of original size [2021-11-07 02:10:53,862 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:10:53,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:10:53,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:10:53,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:53,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:10:53,872 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,875 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,880 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 02:10:53,881 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,881 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2021-11-07 02:10:53,888 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:10:53,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:53,896 INFO L180 QuantifierPusher]: treesize reduction 58, result has 68.8 percent of original size [2021-11-07 02:10:53,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 02:10:53,907 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 02:10:53,910 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.1 percent of original size 99 [2021-11-07 02:10:53,921 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:10:53,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:53,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:53,926 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,933 INFO L628 ElimStorePlain]: treesize reduction 6, result has 95.5 percent of original size [2021-11-07 02:10:53,939 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:10:53,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:53,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:53,942 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,947 INFO L628 ElimStorePlain]: treesize reduction 58, result has 47.3 percent of original size [2021-11-07 02:10:53,949 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.2 percent of original size [2021-11-07 02:10:53,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:53,950 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:53,950 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:150, output treesize:49 [2021-11-07 02:10:53,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:53,979 INFO L180 QuantifierPusher]: treesize reduction 58, result has 79.2 percent of original size [2021-11-07 02:10:53,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:53,985 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:53,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:53,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 02:10:54,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:54,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,007 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:54,015 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:54,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,017 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:54,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,055 INFO L628 ElimStorePlain]: treesize reduction 20, result has 95.9 percent of original size [2021-11-07 02:10:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:54,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,068 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:54,079 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:54,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,081 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:54,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,100 INFO L628 ElimStorePlain]: treesize reduction 211, result has 48.9 percent of original size [2021-11-07 02:10:54,106 INFO L180 QuantifierPusher]: treesize reduction 93, result has 54.0 percent of original size [2021-11-07 02:10:54,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-07 02:10:54,109 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:10:54,109 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:541, output treesize:109 [2021-11-07 02:10:54,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,153 INFO L180 QuantifierPusher]: treesize reduction 100, result has 56.1 percent of original size [2021-11-07 02:10:54,156 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:54,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:54,158 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:10:54,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:10:54,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:10:54,172 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:54,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,175 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:54,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,181 INFO L628 ElimStorePlain]: treesize reduction 6, result has 95.9 percent of original size [2021-11-07 02:10:54,187 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:10:54,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:10:54,190 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:10:54,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:10:54,197 INFO L628 ElimStorePlain]: treesize reduction 60, result has 47.4 percent of original size [2021-11-07 02:10:54,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:54,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-07 02:10:54,199 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:10:54,200 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:174, output treesize:54 [2021-11-07 02:10:54,204 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:10:54,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:10:54,212 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:10:54,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:10:54,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:10:54,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2021-11-07 02:10:54,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753966904] [2021-11-07 02:10:54,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 02:10:54,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:10:54,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 02:10:54,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-11-07 02:10:54,726 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:54,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:54,830 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2021-11-07 02:10:54,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:10:54,831 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 02:10:54,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:54,832 INFO L225 Difference]: With dead ends: 48 [2021-11-07 02:10:54,832 INFO L226 Difference]: Without dead ends: 40 [2021-11-07 02:10:54,832 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2021-11-07 02:10:54,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-07 02:10:54,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2021-11-07 02:10:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 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 02:10:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-07 02:10:54,839 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-11-07 02:10:54,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:54,839 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-07 02:10:54,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-07 02:10:54,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 02:10:54,840 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:54,841 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:54,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:55,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-11-07 02:10:55,041 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:55,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:55,042 INFO L85 PathProgramCache]: Analyzing trace with hash -24821144, now seen corresponding path program 4 times [2021-11-07 02:10:55,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:55,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176699054] [2021-11-07 02:10:55,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:55,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:56,151 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:10:56,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176699054] [2021-11-07 02:10:56,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176699054] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:10:56,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407606429] [2021-11-07 02:10:56,151 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 02:10:56,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:10:56,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:56,153 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:10:56,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 02:10:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:56,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-07 02:10:56,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:56,315 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 02:10:56,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-07 02:10:56,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,426 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:56,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-07 02:10:56,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,564 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:56,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 90 [2021-11-07 02:10:56,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-11-07 02:10:56,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2021-11-07 02:10:56,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,789 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:56,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 113 [2021-11-07 02:10:56,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-11-07 02:10:56,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:56,881 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:56,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 37 [2021-11-07 02:10:57,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,036 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:57,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 113 [2021-11-07 02:10:57,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 36 [2021-11-07 02:10:57,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 31 [2021-11-07 02:10:57,410 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:57,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 108 [2021-11-07 02:10:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:57,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:59,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 250 [2021-11-07 02:10:59,125 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-07 02:10:59,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34895 treesize of output 32619 [2021-11-07 02:11:00,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 250 [2021-11-07 02:11:00,315 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-07 02:11:00,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 909800 treesize of output 859804 [2021-11-07 02:11:46,336 WARN L207 SmtUtils]: Spent 46.02 s on a formula simplification. DAG size of input: 381 DAG size of output: 292 [2021-11-07 02:11:46,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 254 [2021-11-07 02:11:46,393 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-07 02:11:46,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6643350 treesize of output 1 [2021-11-07 02:11:46,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 254 [2021-11-07 02:11:46,416 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-07 02:11:46,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 958146 treesize of output 947222 [2021-11-07 02:11:58,801 WARN L207 SmtUtils]: Spent 9.69 s on a formula simplification. DAG size of input: 201 DAG size of output: 201 [2021-11-07 02:11:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:58,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407606429] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:11:58,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2052853261] [2021-11-07 02:11:58,900 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 02:11:58,900 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:11:58,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:11:58,901 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:11:58,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:11:58,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,907 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:58,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:11:58,908 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:58,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:11:58,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 02:11:58,913 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_25|], 21=[|v_#valid_26|]} [2021-11-07 02:11:58,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:11:58,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:11:58,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:11:58,925 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:58,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:58,930 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:11:58,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:11:58,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:11:58,949 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:58,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:58,952 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 02:11:58,955 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:11:58,955 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 02:11:58,961 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.3 percent of original size [2021-11-07 02:11:58,962 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:58,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:11:58,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:58,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:58,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:11:58,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-07 02:11:58,970 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_26|], 15=[|v_#valid_27|]} [2021-11-07 02:11:58,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:58,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,000 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 02:11:59,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 02:11:59,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:11:59,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:11:59,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,012 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:11:59,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,014 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-07 02:11:59,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:11:59,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:11:59,041 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,047 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-07 02:11:59,051 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,052 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:137 [2021-11-07 02:11:59,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:11:59,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-11-07 02:11:59,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:11:59,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:11:59,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:11:59,075 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,082 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-07 02:11:59,086 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,086 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:156 [2021-11-07 02:11:59,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,166 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:11:59,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 02:11:59,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-11-07 02:11:59,178 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-11-07 02:11:59,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-11-07 02:11:59,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 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 02:11:59,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:11:59,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:11:59,221 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:11:59,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:11:59,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:11:59,239 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,275 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,291 INFO L180 QuantifierPusher]: treesize reduction 119, result has 74.2 percent of original size [2021-11-07 02:11:59,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-11-07 02:11:59,299 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:11:59,299 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:470, output treesize:343 [2021-11-07 02:11:59,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,357 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.5 percent of original size [2021-11-07 02:11:59,359 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:11:59,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:11:59,366 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 02:11:59,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:11:59,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:11:59,368 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,371 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 02:11:59,373 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,373 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2021-11-07 02:11:59,378 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:11:59,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:11:59,386 INFO L180 QuantifierPusher]: treesize reduction 58, result has 68.8 percent of original size [2021-11-07 02:11:59,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 02:11:59,389 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 02:11:59,394 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.1 percent of original size 99 [2021-11-07 02:11:59,402 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:11:59,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,404 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,411 INFO L628 ElimStorePlain]: treesize reduction 5, result has 96.2 percent of original size [2021-11-07 02:11:59,417 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:11:59,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,419 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,427 INFO L628 ElimStorePlain]: treesize reduction 59, result has 46.8 percent of original size [2021-11-07 02:11:59,428 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.2 percent of original size [2021-11-07 02:11:59,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:11:59,430 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,430 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:150, output treesize:49 [2021-11-07 02:11:59,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,458 INFO L180 QuantifierPusher]: treesize reduction 58, result has 79.2 percent of original size [2021-11-07 02:11:59,461 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:11:59,463 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:11:59,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 02:11:59,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:11:59,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,488 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,497 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:11:59,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,500 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,527 INFO L628 ElimStorePlain]: treesize reduction 20, result has 95.9 percent of original size [2021-11-07 02:11:59,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:11:59,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:11:59,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,540 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,552 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:11:59,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,554 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,570 INFO L628 ElimStorePlain]: treesize reduction 211, result has 48.9 percent of original size [2021-11-07 02:11:59,576 INFO L180 QuantifierPusher]: treesize reduction 93, result has 54.0 percent of original size [2021-11-07 02:11:59,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-07 02:11:59,578 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:11:59,579 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:541, output treesize:109 [2021-11-07 02:11:59,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,616 INFO L180 QuantifierPusher]: treesize reduction 100, result has 56.1 percent of original size [2021-11-07 02:11:59,618 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:11:59,620 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:11:59,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:11:59,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:11:59,630 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:11:59,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,632 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,639 INFO L628 ElimStorePlain]: treesize reduction 6, result has 95.9 percent of original size [2021-11-07 02:11:59,644 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:11:59,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:11:59,647 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:11:59,651 INFO L628 ElimStorePlain]: treesize reduction 60, result has 47.4 percent of original size [2021-11-07 02:11:59,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:11:59,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-07 02:11:59,653 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:11:59,654 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:174, output treesize:54 [2021-11-07 02:11:59,658 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:11:59,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:11:59,664 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:12:00,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:12:00,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:12:00,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2021-11-07 02:12:00,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397308406] [2021-11-07 02:12:00,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 02:12:00,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:12:00,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 02:12:00,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 02:12:00,403 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 30 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:04,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:04,726 INFO L93 Difference]: Finished difference Result 101 states and 119 transitions. [2021-11-07 02:12:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-07 02:12:04,727 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 02:12:04,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:04,728 INFO L225 Difference]: With dead ends: 101 [2021-11-07 02:12:04,728 INFO L226 Difference]: Without dead ends: 99 [2021-11-07 02:12:04,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=647, Invalid=4183, Unknown=0, NotChecked=0, Total=4830 [2021-11-07 02:12:04,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-07 02:12:04,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 40. [2021-11-07 02:12:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 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 02:12:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2021-11-07 02:12:04,746 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 13 [2021-11-07 02:12:04,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:04,746 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2021-11-07 02:12:04,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:04,747 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2021-11-07 02:12:04,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 02:12:04,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:04,748 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:04,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:04,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-11-07 02:12:04,966 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:12:04,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:04,966 INFO L85 PathProgramCache]: Analyzing trace with hash 565750421, now seen corresponding path program 1 times [2021-11-07 02:12:04,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:12:04,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646252445] [2021-11-07 02:12:04,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:04,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:12:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:05,669 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:12:05,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646252445] [2021-11-07 02:12:05,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646252445] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:12:05,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881082221] [2021-11-07 02:12:05,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:05,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:12:05,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:12:05,670 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:12:05,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 02:12:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:05,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-07 02:12:05,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:05,884 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 02:12:05,911 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 0 case distinctions, treesize of input 36 treesize of output 31 [2021-11-07 02:12:05,922 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-07 02:12:05,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 45 [2021-11-07 02:12:06,113 INFO L354 Elim1Store]: treesize reduction 84, result has 23.6 percent of original size [2021-11-07 02:12:06,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 100 [2021-11-07 02:12:06,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:06,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 13 [2021-11-07 02:12:06,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:06,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 18 [2021-11-07 02:12:06,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:06,450 INFO L354 Elim1Store]: treesize reduction 129, result has 2.3 percent of original size [2021-11-07 02:12:06,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 119 treesize of output 112 [2021-11-07 02:12:06,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:06,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 24 [2021-11-07 02:12:06,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:06,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 26 [2021-11-07 02:12:07,048 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:07,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 102 [2021-11-07 02:12:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:07,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:09,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 232 [2021-11-07 02:12:09,260 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-07 02:12:09,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2261 treesize of output 2185 [2021-11-07 02:12:09,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 232 [2021-11-07 02:12:09,328 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-07 02:12:09,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3249 treesize of output 3113 [2021-11-07 02:12:09,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 430 [2021-11-07 02:12:09,458 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-07 02:12:09,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 9773 treesize of output 1 [2021-11-07 02:12:09,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 144 [2021-11-07 02:12:09,479 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-07 02:12:09,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2894 treesize of output 2820 [2021-11-07 02:12:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:09,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881082221] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:12:09,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [339621606] [2021-11-07 02:12:09,939 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-07 02:12:09,939 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:12:09,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:12:09,940 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:12:09,940 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:12:09,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:09,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:09,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:09,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:12:09,950 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:09,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:09,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:12:09,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 02:12:09,955 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_28|], 21=[|v_#valid_29|]} [2021-11-07 02:12:09,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:12:09,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:09,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:12:09,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:09,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:12:09,968 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:09,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:09,979 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:09,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:09,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:12:10,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:12:10,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:12:10,003 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,005 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 02:12:10,007 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,008 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 02:12:10,012 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.3 percent of original size [2021-11-07 02:12:10,013 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:12:10,015 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:12:10,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-07 02:12:10,022 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_29|], 15=[|v_#valid_30|]} [2021-11-07 02:12:10,028 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:12:10,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,030 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,051 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 02:12:10,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 02:12:10,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:12:10,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:12:10,055 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,061 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-07 02:12:10,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:12:10,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:12:10,078 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-07 02:12:10,089 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,089 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:137 [2021-11-07 02:12:10,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,094 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:12:10,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-11-07 02:12:10,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:12:10,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:12:10,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:12:10,112 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,118 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-07 02:12:10,122 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,123 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:156 [2021-11-07 02:12:10,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,187 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:12:10,193 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 02:12:10,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-11-07 02:12:10,199 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-11-07 02:12:10,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-11-07 02:12:10,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:12:10,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:12:10,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:12:10,234 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 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 02:12:10,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:12:10,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:12:10,254 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,283 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,294 INFO L180 QuantifierPusher]: treesize reduction 119, result has 74.2 percent of original size [2021-11-07 02:12:10,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-11-07 02:12:10,298 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:12:10,299 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:470, output treesize:343 [2021-11-07 02:12:10,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,344 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.5 percent of original size [2021-11-07 02:12:10,357 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:12:10,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:12:10,364 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 02:12:10,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:12:10,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:12:10,365 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 02:12:10,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,370 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2021-11-07 02:12:10,374 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:12:10,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:12:10,379 INFO L180 QuantifierPusher]: treesize reduction 58, result has 68.8 percent of original size [2021-11-07 02:12:10,381 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 02:12:10,383 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-07 02:12:10,385 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.1 percent of original size 99 [2021-11-07 02:12:10,393 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:12:10,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,396 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,401 INFO L628 ElimStorePlain]: treesize reduction 5, result has 96.2 percent of original size [2021-11-07 02:12:10,407 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:12:10,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,410 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,413 INFO L628 ElimStorePlain]: treesize reduction 59, result has 46.8 percent of original size [2021-11-07 02:12:10,415 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.2 percent of original size [2021-11-07 02:12:10,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:12:10,416 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,416 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:150, output treesize:49 [2021-11-07 02:12:10,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,438 INFO L180 QuantifierPusher]: treesize reduction 58, result has 79.2 percent of original size [2021-11-07 02:12:10,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:10,443 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:10,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 02:12:10,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:10,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,461 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,468 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:10,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,470 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,491 INFO L628 ElimStorePlain]: treesize reduction 18, result has 96.3 percent of original size [2021-11-07 02:12:10,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:10,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:10,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,502 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,510 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:10,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,512 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,525 INFO L628 ElimStorePlain]: treesize reduction 213, result has 48.7 percent of original size [2021-11-07 02:12:10,529 INFO L180 QuantifierPusher]: treesize reduction 93, result has 54.0 percent of original size [2021-11-07 02:12:10,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-07 02:12:10,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:12:10,531 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:541, output treesize:109 [2021-11-07 02:12:10,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,562 INFO L180 QuantifierPusher]: treesize reduction 100, result has 56.1 percent of original size [2021-11-07 02:12:10,564 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:10,566 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:10,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:10,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:12:10,575 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:10,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,578 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,583 INFO L628 ElimStorePlain]: treesize reduction 5, result has 96.6 percent of original size [2021-11-07 02:12:10,589 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:10,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:10,592 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,596 INFO L628 ElimStorePlain]: treesize reduction 61, result has 47.0 percent of original size [2021-11-07 02:12:10,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-07 02:12:10,598 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:10,598 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:174, output treesize:54 [2021-11-07 02:12:10,602 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:12:10,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:12:10,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2495 [2021-11-07 02:12:10,657 INFO L180 QuantifierPusher]: treesize reduction 2087, result has 27.9 percent of original size [2021-11-07 02:12:10,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-07 02:12:10,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,834 INFO L180 QuantifierPusher]: treesize reduction 42, result has 62.8 percent of original size [2021-11-07 02:12:10,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 02:12:10,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:10,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-11-07 02:12:10,858 INFO L180 QuantifierPusher]: treesize reduction 42, result has 62.8 percent of original size [2021-11-07 02:12:10,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 02:12:10,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:10,893 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:12:11,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:12:11,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:12:11,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 31 [2021-11-07 02:12:11,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472851710] [2021-11-07 02:12:11,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-07 02:12:11,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:12:11,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-07 02:12:11,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1152, Unknown=0, NotChecked=0, Total=1332 [2021-11-07 02:12:11,791 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand has 31 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:21,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:21,744 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2021-11-07 02:12:21,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-07 02:12:21,744 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-07 02:12:21,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:21,746 INFO L225 Difference]: With dead ends: 75 [2021-11-07 02:12:21,746 INFO L226 Difference]: Without dead ends: 60 [2021-11-07 02:12:21,749 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1245 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=613, Invalid=3809, Unknown=0, NotChecked=0, Total=4422 [2021-11-07 02:12:21,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-07 02:12:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 34. [2021-11-07 02:12:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2021-11-07 02:12:21,762 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 14 [2021-11-07 02:12:21,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:21,762 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2021-11-07 02:12:21,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:21,763 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2021-11-07 02:12:21,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 02:12:21,763 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:21,763 INFO L513 BasicCegarLoop]: trace histogram [7, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:21,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:21,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2021-11-07 02:12:21,964 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:12:21,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1010314791, now seen corresponding path program 5 times [2021-11-07 02:12:21,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:12:21,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567080120] [2021-11-07 02:12:21,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:21,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:12:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:22,098 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:12:22,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567080120] [2021-11-07 02:12:22,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567080120] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:12:22,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062828661] [2021-11-07 02:12:22,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:12:22,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:12:22,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:12:22,100 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:12:22,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 02:12:22,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-07 02:12:22,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:12:22,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 02:12:22,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:22,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:22,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062828661] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:12:22,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1928547491] [2021-11-07 02:12:22,829 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 02:12:22,829 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:12:22,830 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:12:22,830 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:12:22,830 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:12:22,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:22,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:12:22,850 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:22,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:12:22,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 02:12:22,858 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_31|], 21=[|v_#valid_32|]} [2021-11-07 02:12:22,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:12:22,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:12:22,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:12:22,869 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:22,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:22,872 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:12:22,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:12:22,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:12:22,891 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:22,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:22,894 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 02:12:22,897 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:22,897 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 02:12:22,904 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.3 percent of original size [2021-11-07 02:12:22,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:22,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:12:22,906 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:22,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:12:22,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-07 02:12:22,915 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_32|], 15=[|v_#valid_33|]} [2021-11-07 02:12:22,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,950 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 02:12:22,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 32 [2021-11-07 02:12:22,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:12:22,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 02:12:22,953 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:22,959 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:12:22,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:22,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:22,961 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:22,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:22,967 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:22,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-07 02:12:22,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:12:22,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-07 02:12:22,984 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:22,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:22,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-11-07 02:12:22,993 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:22,993 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:137 [2021-11-07 02:12:22,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,997 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:22,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:22,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:12:23,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-11-07 02:12:23,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:12:23,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:12:23,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:12:23,013 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,019 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-07 02:12:23,023 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,023 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:156 [2021-11-07 02:12:23,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,081 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,085 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 02:12:23,087 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 02:12:23,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-11-07 02:12:23,092 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-11-07 02:12:23,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-11-07 02:12:23,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 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 02:12:23,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:12:23,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 02:12:23,134 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 02:12:23,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:12:23,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 02:12:23,150 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,178 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,189 INFO L180 QuantifierPusher]: treesize reduction 119, result has 74.2 percent of original size [2021-11-07 02:12:23,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-11-07 02:12:23,194 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:12:23,195 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:470, output treesize:343 [2021-11-07 02:12:23,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,240 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.5 percent of original size [2021-11-07 02:12:23,242 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:12:23,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:12:23,248 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 02:12:23,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:12:23,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:12:23,250 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,252 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 02:12:23,260 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,260 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2021-11-07 02:12:23,265 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:12:23,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:12:23,269 INFO L180 QuantifierPusher]: treesize reduction 58, result has 68.8 percent of original size [2021-11-07 02:12:23,271 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:23,273 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:23,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 02:12:23,283 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:23,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,285 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,290 INFO L628 ElimStorePlain]: treesize reduction 9, result has 94.0 percent of original size [2021-11-07 02:12:23,295 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:23,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,297 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,300 INFO L628 ElimStorePlain]: treesize reduction 61, result has 47.0 percent of original size [2021-11-07 02:12:23,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-07 02:12:23,302 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,303 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:178, output treesize:54 [2021-11-07 02:12:23,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,325 INFO L180 QuantifierPusher]: treesize reduction 58, result has 78.9 percent of original size [2021-11-07 02:12:23,328 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:23,330 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:23,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-07 02:12:23,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:23,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,350 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,357 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:23,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,360 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,401 INFO L628 ElimStorePlain]: treesize reduction 18, result has 96.3 percent of original size [2021-11-07 02:12:23,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:23,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:23,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,413 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,421 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:23,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,423 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,436 INFO L628 ElimStorePlain]: treesize reduction 215, result has 48.7 percent of original size [2021-11-07 02:12:23,439 INFO L180 QuantifierPusher]: treesize reduction 95, result has 53.4 percent of original size [2021-11-07 02:12:23,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-07 02:12:23,441 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 02:12:23,441 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:545, output treesize:109 [2021-11-07 02:12:23,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,469 INFO L180 QuantifierPusher]: treesize reduction 100, result has 56.1 percent of original size [2021-11-07 02:12:23,471 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:23,472 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:12:23,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 02:12:23,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:12:23,482 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:23,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,485 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,492 INFO L628 ElimStorePlain]: treesize reduction 6, result has 95.9 percent of original size [2021-11-07 02:12:23,497 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 0 case distinctions, treesize of input 27 treesize of output 14 [2021-11-07 02:12:23,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:12:23,500 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:12:23,510 INFO L628 ElimStorePlain]: treesize reduction 60, result has 47.4 percent of original size [2021-11-07 02:12:23,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:23,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-07 02:12:23,512 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:12:23,512 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:174, output treesize:54 [2021-11-07 02:12:23,516 INFO L180 QuantifierPusher]: treesize reduction 43, result has 56.6 percent of original size [2021-11-07 02:12:23,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:12:23,522 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:12:24,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:12:24,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:12:24,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2021-11-07 02:12:24,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237297692] [2021-11-07 02:12:24,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-07 02:12:24,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:12:24,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-07 02:12:24,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2021-11-07 02:12:24,043 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:24,583 INFO L93 Difference]: Finished difference Result 176 states and 202 transitions. [2021-11-07 02:12:24,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-07 02:12:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 02:12:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:24,589 INFO L225 Difference]: With dead ends: 176 [2021-11-07 02:12:24,589 INFO L226 Difference]: Without dead ends: 152 [2021-11-07 02:12:24,591 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=562, Invalid=2194, Unknown=0, NotChecked=0, Total=2756 [2021-11-07 02:12:24,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-11-07 02:12:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 77. [2021-11-07 02:12:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 76 states have internal predecessors, (97), 0 states have call successors, (0), 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 02:12:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 97 transitions. [2021-11-07 02:12:24,619 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 97 transitions. Word has length 18 [2021-11-07 02:12:24,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:24,619 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 97 transitions. [2021-11-07 02:12:24,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:12:24,619 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 97 transitions. [2021-11-07 02:12:24,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 02:12:24,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:24,621 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:24,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:24,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable217 [2021-11-07 02:12:24,842 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:12:24,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:24,843 INFO L85 PathProgramCache]: Analyzing trace with hash -690807384, now seen corresponding path program 2 times [2021-11-07 02:12:24,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:12:24,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203022136] [2021-11-07 02:12:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:24,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:12:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:26,037 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:26,037 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:12:26,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203022136] [2021-11-07 02:12:26,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203022136] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:12:26,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256932143] [2021-11-07 02:12:26,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:12:26,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:12:26,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:12:26,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:12:26,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba183d84-02c9-4dff-88ae-2bb13bd52cf2/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 02:12:26,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 02:12:26,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:12:26,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-07 02:12:26,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:26,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-07 02:12:26,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-07 02:12:26,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,526 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:26,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-07 02:12:26,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,651 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:26,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 90 [2021-11-07 02:12:26,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 31 [2021-11-07 02:12:26,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,776 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:26,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-07 02:12:26,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 23 [2021-11-07 02:12:26,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:26,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:27,045 INFO L354 Elim1Store]: treesize reduction 154, result has 43.2 percent of original size [2021-11-07 02:12:27,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 104 treesize of output 186 [2021-11-07 02:12:27,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:27,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:27,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:12:27,119 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:27,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 81 [2021-11-07 02:12:28,045 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:12:28,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 43 [2021-11-07 02:12:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:28,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:51,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1668 treesize of output 1572 [2021-11-07 02:12:52,192 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-07 02:12:52,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 4243616222 treesize of output 4058656750