./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH --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 94a3c9718d8b0819c3a22a45f77fd4dac96406e3aa7eff964888695d6121efac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:23:06,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:23:06,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:23:06,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:23:06,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:23:06,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:23:06,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:23:06,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:23:06,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:23:06,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:23:06,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:23:06,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:23:06,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:23:06,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:23:06,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:23:06,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:23:06,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:23:06,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:23:06,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:23:06,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:23:06,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:23:06,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:23:06,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:23:06,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:23:06,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:23:06,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:23:06,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:23:06,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:23:06,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:23:06,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:23:06,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:23:06,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:23:06,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:23:06,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:23:06,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:23:06,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:23:06,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:23:06,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:23:06,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:23:06,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:23:06,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:23:06,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:23:06,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:23:06,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:23:06,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:23:06,970 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:23:06,971 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:23:06,971 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:23:06,971 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:23:06,971 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:23:06,977 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:23:06,978 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:23:06,978 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:23:06,979 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:23:06,979 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:23:06,979 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:23:06,979 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:23:06,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:23:06,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:23:06,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:23:06,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:23:06,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:23:06,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:23:06,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:23:06,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:23:06,982 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:23:06,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:23:06,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:23:06,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:23:06,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:23:06,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:23:06,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:23:06,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:06,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:23:06,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:23:06,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:23:06,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:23:06,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:23:06,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:23:06,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:23:06,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:23:06,987 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_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94a3c9718d8b0819c3a22a45f77fd4dac96406e3aa7eff964888695d6121efac [2021-11-03 05:23:07,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:23:07,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:23:07,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:23:07,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:23:07,263 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:23:07,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c [2021-11-03 05:23:07,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/data/2defc0ba3/f9e7a29ca39c4223a86c4ec044dc39cb/FLAG986bb02a4 [2021-11-03 05:23:07,761 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:23:07,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c [2021-11-03 05:23:07,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/data/2defc0ba3/f9e7a29ca39c4223a86c4ec044dc39cb/FLAG986bb02a4 [2021-11-03 05:23:08,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/data/2defc0ba3/f9e7a29ca39c4223a86c4ec044dc39cb [2021-11-03 05:23:08,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:23:08,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:23:08,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:08,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:23:08,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:23:08,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c5b8e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08, skipping insertion in model container [2021-11-03 05:23:08,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:23:08,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:23:08,319 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_71ea7a73-06df-47a8-95a1-fdb778b1f44d/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c[414,427] [2021-11-03 05:23:08,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:08,347 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:23:08,359 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_71ea7a73-06df-47a8-95a1-fdb778b1f44d/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c[414,427] [2021-11-03 05:23:08,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:23:08,390 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:23:08,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08 WrapperNode [2021-11-03 05:23:08,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:23:08,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:23:08,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:23:08,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:23:08,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:23:08,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:23:08,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:23:08,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:23:08,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:23:08,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:23:08,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:23:08,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:23:08,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (1/1) ... [2021-11-03 05:23:08,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:23:08,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:08,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:23:08,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:23:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:23:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:23:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:23:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:23:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:23:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 05:23:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:23:09,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:23:09,052 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-03 05:23:09,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:23:09 BoogieIcfgContainer [2021-11-03 05:23:09,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:23:09,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:23:09,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:23:09,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:23:09,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:23:08" (1/3) ... [2021-11-03 05:23:09,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375cf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:23:09, skipping insertion in model container [2021-11-03 05:23:09,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:23:08" (2/3) ... [2021-11-03 05:23:09,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375cf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:23:09, skipping insertion in model container [2021-11-03 05:23:09,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:23:09" (3/3) ... [2021-11-03 05:23:09,067 INFO L111 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr.c [2021-11-03 05:23:09,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:23:09,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:23:09,115 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:23:09,122 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 [2021-11-03 05:23:09,122 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:23:09,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:09,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 05:23:09,139 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:09,140 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 05:23:09,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:09,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:09,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1387171958, now seen corresponding path program 1 times [2021-11-03 05:23:09,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:23:09,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560441467] [2021-11-03 05:23:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:09,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:23:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:23:09,370 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:23:09,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560441467] [2021-11-03 05:23:09,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560441467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:23:09,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:23:09,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 05:23:09,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516030961] [2021-11-03 05:23:09,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:23:09,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:23:09,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:23:09,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:23:09,401 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:09,441 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2021-11-03 05:23:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:23:09,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-03 05:23:09,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:09,450 INFO L225 Difference]: With dead ends: 17 [2021-11-03 05:23:09,451 INFO L226 Difference]: Without dead ends: 9 [2021-11-03 05:23:09,453 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:23:09,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-03 05:23:09,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-03 05:23:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-11-03 05:23:09,493 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 6 [2021-11-03 05:23:09,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:09,494 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-11-03 05:23:09,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:09,494 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-03 05:23:09,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 05:23:09,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:09,495 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:09,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:23:09,495 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:09,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:09,496 INFO L85 PathProgramCache]: Analyzing trace with hash -110753083, now seen corresponding path program 1 times [2021-11-03 05:23:09,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:23:09,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741548865] [2021-11-03 05:23:09,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:09,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:23:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:23:09,562 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:23:09,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741548865] [2021-11-03 05:23:09,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741548865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:23:09,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:23:09,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:23:09,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557602319] [2021-11-03 05:23:09,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:23:09,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:23:09,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:23:09,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:23:09,566 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand has 4 states, 4 states have (on average 1.75) 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) [2021-11-03 05:23:09,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:09,617 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-11-03 05:23:09,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:23:09,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) 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 [2021-11-03 05:23:09,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:09,618 INFO L225 Difference]: With dead ends: 15 [2021-11-03 05:23:09,618 INFO L226 Difference]: Without dead ends: 10 [2021-11-03 05:23:09,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:23:09,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-03 05:23:09,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-03 05:23:09,622 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) [2021-11-03 05:23:09,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-11-03 05:23:09,623 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2021-11-03 05:23:09,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:09,623 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-03 05:23:09,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) 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) [2021-11-03 05:23:09,623 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-03 05:23:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 05:23:09,624 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:09,624 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:09,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 05:23:09,625 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:09,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:09,626 INFO L85 PathProgramCache]: Analyzing trace with hash 849702428, now seen corresponding path program 1 times [2021-11-03 05:23:09,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:23:09,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844141764] [2021-11-03 05:23:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:09,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:23:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:09,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:23:09,719 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:23:09,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844141764] [2021-11-03 05:23:09,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844141764] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 05:23:09,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433419633] [2021-11-03 05:23:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:09,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:09,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:09,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:23:09,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 05:23:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:09,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:23:09,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:23:09,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:23:10,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433419633] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:23:10,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1937668726] [2021-11-03 05:23:10,076 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 05:23:10,076 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 05:23:10,084 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 05:23:10,090 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 05:23:10,091 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 05:23:10,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,148 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:10,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-03 05:23:10,159 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:10,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-03 05:23:10,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 05:23:10,212 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 78=[|v_#valid_32|]} [2021-11-03 05:23:10,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-03 05:23:10,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:10,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:10,289 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:10,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:10,352 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,456 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 05:23:10,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 67 treesize of output 66 [2021-11-03 05:23:10,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:10,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:10,471 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:10,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:10,503 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 05:23:10,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:10,530 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:236, output treesize:175 [2021-11-03 05:23:10,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,561 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:10,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:10,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-03 05:23:10,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:10,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:10,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:10,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:10,650 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:10,674 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:10,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:10,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:10,677 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:10,704 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:10,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:10,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:10,707 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:10,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:10,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,756 INFO L180 QuantifierPusher]: treesize reduction 9, result has 96.1 percent of original size [2021-11-03 05:23:10,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 05:23:10,770 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:10,771 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:748, output treesize:224 [2021-11-03 05:23:10,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:10,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:10,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:10,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:10,992 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-03 05:23:11,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,035 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:11,039 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-03 05:23:11,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-03 05:23:11,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-11-03 05:23:11,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 581 [2021-11-03 05:23:11,136 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:11,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,141 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,176 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:11,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,178 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,199 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:11,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,202 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,219 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:11,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,221 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:11,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:11,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:11,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:11,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:11,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 85 [2021-11-03 05:23:11,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:11,285 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:11,286 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:11,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:11,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:11,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:11,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:11,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:11,325 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,396 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,430 INFO L180 QuantifierPusher]: treesize reduction 143, result has 78.9 percent of original size [2021-11-03 05:23:11,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 534 [2021-11-03 05:23:11,441 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 05:23:11,442 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:2125, output treesize:534 [2021-11-03 05:23:11,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,603 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 05:23:11,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-11-03 05:23:11,629 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:11,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,631 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:11,667 INFO L354 Elim1Store]: treesize reduction 19, result has 45.7 percent of original size [2021-11-03 05:23:11,668 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 1 case distinctions, treesize of input 43 treesize of output 30 [2021-11-03 05:23:11,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:11,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:11,671 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,683 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:11,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,685 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,696 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:11,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,698 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,709 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:11,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,711 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:11,733 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-11-03 05:23:11,733 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 1 case distinctions, treesize of input 43 treesize of output 1 [2021-11-03 05:23:11,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:11,736 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,747 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,752 INFO L180 QuantifierPusher]: treesize reduction 61, result has 63.3 percent of original size [2021-11-03 05:23:11,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-03 05:23:11,754 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,755 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1084, output treesize:105 [2021-11-03 05:23:11,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,771 INFO L185 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size 31 [2021-11-03 05:23:11,776 INFO L185 QuantifierPusher]: treesize reduction 33, result has 76.8 percent of original size 109 [2021-11-03 05:23:11,784 INFO L180 QuantifierPusher]: treesize reduction 33, result has 82.1 percent of original size [2021-11-03 05:23:11,786 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 05:23:11,791 INFO L185 QuantifierPusher]: treesize reduction 57, result has 57.5 percent of original size 77 [2021-11-03 05:23:11,836 INFO L354 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2021-11-03 05:23:11,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 40 [2021-11-03 05:23:11,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,841 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-03 05:23:11,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-03 05:23:11,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-03 05:23:11,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:11,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,864 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,868 INFO L180 QuantifierPusher]: treesize reduction 59, result has 70.2 percent of original size [2021-11-03 05:23:11,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-03 05:23:11,871 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:11,872 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:139 [2021-11-03 05:23:11,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:11,928 INFO L180 QuantifierPusher]: treesize reduction 54, result has 64.9 percent of original size [2021-11-03 05:23:11,930 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-03 05:23:11,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-03 05:23:11,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:11,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:11,980 INFO L354 Elim1Store]: treesize reduction 38, result has 51.9 percent of original size [2021-11-03 05:23:11,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 55 [2021-11-03 05:23:11,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,988 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:11,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:11,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:11,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:11,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:11,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:11,997 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:11,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:12,003 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:12,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:12,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-11-03 05:23:12,008 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:12,008 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:194 [2021-11-03 05:23:12,016 INFO L180 QuantifierPusher]: treesize reduction 55, result has 54.2 percent of original size [2021-11-03 05:23:12,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 05:23:12,023 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 05:23:12,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:23:12,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 05:23:12,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2021-11-03 05:23:12,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105943421] [2021-11-03 05:23:12,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:23:12,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:23:12,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:23:12,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:23:12,616 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:12,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:12,639 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2021-11-03 05:23:12,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:23:12,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 05:23:12,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:12,640 INFO L225 Difference]: With dead ends: 20 [2021-11-03 05:23:12,640 INFO L226 Difference]: Without dead ends: 13 [2021-11-03 05:23:12,641 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:23:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-03 05:23:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-03 05:23:12,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 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) [2021-11-03 05:23:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-11-03 05:23:12,644 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 8 [2021-11-03 05:23:12,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:12,644 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-11-03 05:23:12,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:12,645 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-03 05:23:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:23:12,645 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:12,646 INFO L513 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:12,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:12,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:12,854 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:12,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:12,855 INFO L85 PathProgramCache]: Analyzing trace with hash 193659703, now seen corresponding path program 2 times [2021-11-03 05:23:12,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:23:12,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919435171] [2021-11-03 05:23:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:12,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:23:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:23:12,942 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:23:12,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919435171] [2021-11-03 05:23:12,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919435171] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 05:23:12,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615519447] [2021-11-03 05:23:12,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:23:12,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:12,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:12,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:23:12,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 05:23:13,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 05:23:13,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:23:13,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:23:13,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:23:13,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:23:13,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615519447] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:23:13,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2139274069] [2021-11-03 05:23:13,170 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 05:23:13,170 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 05:23:13,171 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 05:23:13,171 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 05:23:13,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 05:23:13,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,186 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:13,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-03 05:23:13,189 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:13,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-03 05:23:13,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 05:23:13,199 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 78=[|v_#valid_33|]} [2021-11-03 05:23:13,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-03 05:23:13,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:13,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:13,249 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:13,257 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,342 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 05:23:13,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 67 treesize of output 66 [2021-11-03 05:23:13,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:13,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:13,353 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:13,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 05:23:13,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,371 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:236, output treesize:175 [2021-11-03 05:23:13,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,380 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:13,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:13,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-03 05:23:13,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:13,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:13,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:13,425 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,437 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:13,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,439 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,448 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:13,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,453 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:13,465 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,470 INFO L180 QuantifierPusher]: treesize reduction 9, result has 96.1 percent of original size [2021-11-03 05:23:13,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 05:23:13,474 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,475 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:748, output treesize:224 [2021-11-03 05:23:13,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:13,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:13,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:13,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,604 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:13,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-03 05:23:13,625 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:13,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,632 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:13,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:13,635 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:13,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-03 05:23:13,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-03 05:23:13,643 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:13,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-11-03 05:23:13,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 581 [2021-11-03 05:23:13,693 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:13,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,694 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:13,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:13,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:13,734 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,751 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:13,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,753 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:13,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 85 [2021-11-03 05:23:13,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:13,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:13,806 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,821 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:13,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,823 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,838 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:13,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:13,840 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:13,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:13,929 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:13,953 INFO L180 QuantifierPusher]: treesize reduction 143, result has 78.9 percent of original size [2021-11-03 05:23:13,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 534 [2021-11-03 05:23:13,964 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 05:23:13,964 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:2125, output treesize:534 [2021-11-03 05:23:13,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,066 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:14,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 05:23:14,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-11-03 05:23:14,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:14,120 INFO L354 Elim1Store]: treesize reduction 19, result has 45.7 percent of original size [2021-11-03 05:23:14,120 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 1 case distinctions, treesize of input 43 treesize of output 30 [2021-11-03 05:23:14,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:14,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:14,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:14,151 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-11-03 05:23:14,151 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 1 case distinctions, treesize of input 43 treesize of output 1 [2021-11-03 05:23:14,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,154 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,167 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:14,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,169 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,178 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:14,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,180 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,189 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:14,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,191 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,198 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:14,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:14,200 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,210 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,215 INFO L180 QuantifierPusher]: treesize reduction 61, result has 63.3 percent of original size [2021-11-03 05:23:14,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-03 05:23:14,217 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,218 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1084, output treesize:105 [2021-11-03 05:23:14,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,228 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:14,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,232 INFO L185 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size 31 [2021-11-03 05:23:14,237 INFO L185 QuantifierPusher]: treesize reduction 33, result has 76.8 percent of original size 109 [2021-11-03 05:23:14,244 INFO L180 QuantifierPusher]: treesize reduction 33, result has 82.1 percent of original size [2021-11-03 05:23:14,245 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:14,246 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 05:23:14,249 INFO L185 QuantifierPusher]: treesize reduction 57, result has 57.5 percent of original size 77 [2021-11-03 05:23:14,293 INFO L354 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2021-11-03 05:23:14,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 40 [2021-11-03 05:23:14,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,296 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:14,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:14,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:14,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 05:23:14,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 05:23:14,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 05:23:14,307 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:14,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,331 INFO L628 ElimStorePlain]: treesize reduction 19, result has 90.8 percent of original size [2021-11-03 05:23:14,335 INFO L180 QuantifierPusher]: treesize reduction 57, result has 69.7 percent of original size [2021-11-03 05:23:14,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:14,338 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,338 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:131 [2021-11-03 05:23:14,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,395 INFO L180 QuantifierPusher]: treesize reduction 54, result has 64.9 percent of original size [2021-11-03 05:23:14,397 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:14,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-03 05:23:14,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-03 05:23:14,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:14,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:14,444 INFO L354 Elim1Store]: treesize reduction 38, result has 51.9 percent of original size [2021-11-03 05:23:14,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 55 [2021-11-03 05:23:14,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,448 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:14,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,452 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:14,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:14,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:14,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:14,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:14,461 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:14,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:14,468 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:14,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-11-03 05:23:14,473 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:14,473 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:194 [2021-11-03 05:23:14,480 INFO L180 QuantifierPusher]: treesize reduction 55, result has 54.2 percent of original size [2021-11-03 05:23:14,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 05:23:14,487 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 05:23:15,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:23:15,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 05:23:15,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 12 [2021-11-03 05:23:15,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361935667] [2021-11-03 05:23:15,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:23:15,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:23:15,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:23:15,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=189, Unknown=0, NotChecked=0, Total=306 [2021-11-03 05:23:15,022 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:15,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:15,160 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2021-11-03 05:23:15,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:23:15,161 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 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 [2021-11-03 05:23:15,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:15,162 INFO L225 Difference]: With dead ends: 55 [2021-11-03 05:23:15,162 INFO L226 Difference]: Without dead ends: 48 [2021-11-03 05:23:15,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=314, Unknown=0, NotChecked=0, Total=506 [2021-11-03 05:23:15,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-03 05:23:15,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 22. [2021-11-03 05:23:15,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-11-03 05:23:15,168 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2021-11-03 05:23:15,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:15,168 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-11-03 05:23:15,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:15,169 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-11-03 05:23:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 05:23:15,169 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:15,169 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:15,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:15,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:15,385 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:15,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1909590116, now seen corresponding path program 3 times [2021-11-03 05:23:15,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:23:15,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992837988] [2021-11-03 05:23:15,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:15,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:23:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-03 05:23:15,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:23:15,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992837988] [2021-11-03 05:23:15,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992837988] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 05:23:15,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503426892] [2021-11-03 05:23:15,536 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 05:23:15,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:15,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:15,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:23:15,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 05:23:15,678 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 05:23:15,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:23:15,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:23:15,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-03 05:23:15,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-03 05:23:16,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503426892] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:23:16,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [152944165] [2021-11-03 05:23:16,047 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 05:23:16,047 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 05:23:16,047 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 05:23:16,047 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 05:23:16,047 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 05:23:16,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-03 05:23:16,060 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-03 05:23:16,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 05:23:16,068 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 78=[|v_#valid_34|]} [2021-11-03 05:23:16,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-03 05:23:16,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:16,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:16,113 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,123 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,202 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 05:23:16,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 67 treesize of output 66 [2021-11-03 05:23:16,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:16,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:16,212 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,221 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 05:23:16,227 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,228 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:236, output treesize:175 [2021-11-03 05:23:16,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,239 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:16,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-03 05:23:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:16,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:16,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:16,281 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,294 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:16,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,296 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,306 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:16,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,308 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,324 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,330 INFO L180 QuantifierPusher]: treesize reduction 9, result has 96.1 percent of original size [2021-11-03 05:23:16,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 05:23:16,335 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,336 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:748, output treesize:224 [2021-11-03 05:23:16,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,481 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-03 05:23:16,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-03 05:23:16,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:16,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-03 05:23:16,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-11-03 05:23:16,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 581 [2021-11-03 05:23:16,595 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:16,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,597 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 85 [2021-11-03 05:23:16,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:16,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:16,649 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:16,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:16,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:16,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:16,686 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,700 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:16,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,706 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,721 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:16,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,723 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,738 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:16,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,740 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,796 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,828 INFO L180 QuantifierPusher]: treesize reduction 143, result has 78.9 percent of original size [2021-11-03 05:23:16,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 534 [2021-11-03 05:23:16,840 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 05:23:16,840 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:2125, output treesize:534 [2021-11-03 05:23:16,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:16,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:16,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 05:23:16,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-11-03 05:23:16,951 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:16,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:16,953 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:16,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:16,983 INFO L354 Elim1Store]: treesize reduction 19, result has 45.7 percent of original size [2021-11-03 05:23:16,984 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 1 case distinctions, treesize of input 43 treesize of output 30 [2021-11-03 05:23:16,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:16,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:16,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:16,993 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:17,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:17,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:17,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:17,004 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:17,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:17,030 INFO L354 Elim1Store]: treesize reduction 19, result has 45.7 percent of original size [2021-11-03 05:23:17,030 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 1 case distinctions, treesize of input 43 treesize of output 30 [2021-11-03 05:23:17,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:17,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:17,034 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:17,043 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:17,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:17,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:17,045 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:17,059 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:17,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:17,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:17,060 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:17,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,090 INFO L628 ElimStorePlain]: treesize reduction 171, result has 49.4 percent of original size [2021-11-03 05:23:17,096 INFO L180 QuantifierPusher]: treesize reduction 62, result has 62.9 percent of original size [2021-11-03 05:23:17,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-03 05:23:17,098 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:17,098 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1084, output treesize:105 [2021-11-03 05:23:17,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,113 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:17,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,117 INFO L185 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size 31 [2021-11-03 05:23:17,122 INFO L185 QuantifierPusher]: treesize reduction 33, result has 76.8 percent of original size 109 [2021-11-03 05:23:17,128 INFO L180 QuantifierPusher]: treesize reduction 33, result has 82.1 percent of original size [2021-11-03 05:23:17,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:17,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 05:23:17,134 INFO L185 QuantifierPusher]: treesize reduction 57, result has 57.5 percent of original size 77 [2021-11-03 05:23:17,173 INFO L354 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2021-11-03 05:23:17,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 40 [2021-11-03 05:23:17,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,176 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:17,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,180 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:17,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:17,184 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 05:23:17,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 05:23:17,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 05:23:17,187 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:17,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,198 INFO L628 ElimStorePlain]: treesize reduction 19, result has 90.8 percent of original size [2021-11-03 05:23:17,202 INFO L180 QuantifierPusher]: treesize reduction 57, result has 69.7 percent of original size [2021-11-03 05:23:17,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:17,205 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:17,205 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:131 [2021-11-03 05:23:17,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,247 INFO L180 QuantifierPusher]: treesize reduction 54, result has 64.9 percent of original size [2021-11-03 05:23:17,249 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:17,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-03 05:23:17,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-03 05:23:17,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:17,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:17,290 INFO L354 Elim1Store]: treesize reduction 38, result has 51.9 percent of original size [2021-11-03 05:23:17,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 55 [2021-11-03 05:23:17,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:17,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,295 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:17,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-03 05:23:17,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:17,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:17,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:17,302 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:17,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:17,307 INFO L628 ElimStorePlain]: treesize reduction 29, result has 86.1 percent of original size [2021-11-03 05:23:17,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:17,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 05:23:17,311 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:17,311 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:179 [2021-11-03 05:23:17,317 INFO L180 QuantifierPusher]: treesize reduction 55, result has 54.2 percent of original size [2021-11-03 05:23:17,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 05:23:17,325 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 05:23:17,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:23:17,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 05:23:17,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 27 [2021-11-03 05:23:17,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933101572] [2021-11-03 05:23:17,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-03 05:23:17,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:23:17,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-03 05:23:17,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=633, Unknown=0, NotChecked=0, Total=1056 [2021-11-03 05:23:17,871 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 28 states, 28 states have (on average 1.2857142857142858) 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) [2021-11-03 05:23:18,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:18,246 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2021-11-03 05:23:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-03 05:23:18,247 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2857142857142858) 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 20 [2021-11-03 05:23:18,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:18,251 INFO L225 Difference]: With dead ends: 124 [2021-11-03 05:23:18,251 INFO L226 Difference]: Without dead ends: 111 [2021-11-03 05:23:18,252 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=615, Invalid=1025, Unknown=0, NotChecked=0, Total=1640 [2021-11-03 05:23:18,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-03 05:23:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 40. [2021-11-03 05:23:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:18,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2021-11-03 05:23:18,266 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 20 [2021-11-03 05:23:18,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:18,266 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2021-11-03 05:23:18,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.2857142857142858) 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) [2021-11-03 05:23:18,268 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2021-11-03 05:23:18,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 05:23:18,270 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:18,270 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:18,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:18,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:18,480 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:18,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash 726013834, now seen corresponding path program 4 times [2021-11-03 05:23:18,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:23:18,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997441365] [2021-11-03 05:23:18,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:18,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:23:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-03 05:23:18,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:23:18,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997441365] [2021-11-03 05:23:18,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997441365] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 05:23:18,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194191564] [2021-11-03 05:23:18,798 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-03 05:23:18,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:18,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:18,799 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:23:18,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 05:23:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:18,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 05:23:18,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-03 05:23:19,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-03 05:23:19,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194191564] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:23:19,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1634637973] [2021-11-03 05:23:19,853 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 05:23:19,853 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 05:23:19,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 05:23:19,854 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 05:23:19,854 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 05:23:19,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:19,859 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:19,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:19,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-03 05:23:19,861 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:19,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:19,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-03 05:23:19,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 05:23:19,867 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 78=[|v_#valid_35|]} [2021-11-03 05:23:19,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-03 05:23:19,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:19,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:19,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:19,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:19,913 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:19,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:19,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:19,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:19,997 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 05:23:19,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 67 treesize of output 66 [2021-11-03 05:23:19,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:20,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:20,003 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,011 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 05:23:20,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,017 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:236, output treesize:175 [2021-11-03 05:23:20,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:20,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-03 05:23:20,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:20,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:20,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:20,067 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,076 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,078 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,086 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,088 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,098 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,103 INFO L180 QuantifierPusher]: treesize reduction 9, result has 96.1 percent of original size [2021-11-03 05:23:20,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 05:23:20,109 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,110 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:748, output treesize:224 [2021-11-03 05:23:20,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,227 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-03 05:23:20,248 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,255 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-03 05:23:20,257 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:20,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-03 05:23:20,265 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-11-03 05:23:20,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 581 [2021-11-03 05:23:20,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 85 [2021-11-03 05:23:20,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:20,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:20,347 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,362 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,364 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,378 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,379 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,393 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,395 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:20,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:20,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:20,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:20,428 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,440 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,441 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,523 INFO L180 QuantifierPusher]: treesize reduction 143, result has 78.9 percent of original size [2021-11-03 05:23:20,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 534 [2021-11-03 05:23:20,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 05:23:20,533 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:2125, output treesize:534 [2021-11-03 05:23:20,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,640 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 05:23:20,644 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-11-03 05:23:20,657 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,659 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:20,689 INFO L354 Elim1Store]: treesize reduction 19, result has 45.7 percent of original size [2021-11-03 05:23:20,689 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 1 case distinctions, treesize of input 43 treesize of output 30 [2021-11-03 05:23:20,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:20,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:20,692 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,700 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,702 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,710 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,712 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,719 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:20,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:20,721 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,731 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:20,746 INFO L354 Elim1Store]: treesize reduction 19, result has 45.7 percent of original size [2021-11-03 05:23:20,747 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 1 case distinctions, treesize of input 43 treesize of output 30 [2021-11-03 05:23:20,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:20,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:20,749 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,764 INFO L628 ElimStorePlain]: treesize reduction 171, result has 49.4 percent of original size [2021-11-03 05:23:20,768 INFO L180 QuantifierPusher]: treesize reduction 62, result has 62.9 percent of original size [2021-11-03 05:23:20,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-03 05:23:20,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,770 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1084, output treesize:105 [2021-11-03 05:23:20,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,778 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,781 INFO L185 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size 31 [2021-11-03 05:23:20,785 INFO L185 QuantifierPusher]: treesize reduction 33, result has 76.8 percent of original size 109 [2021-11-03 05:23:20,790 INFO L180 QuantifierPusher]: treesize reduction 33, result has 82.1 percent of original size [2021-11-03 05:23:20,791 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 05:23:20,794 INFO L185 QuantifierPusher]: treesize reduction 57, result has 57.5 percent of original size 77 [2021-11-03 05:23:20,834 INFO L354 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2021-11-03 05:23:20,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 40 [2021-11-03 05:23:20,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,840 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 05:23:20,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-03 05:23:20,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-03 05:23:20,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-03 05:23:20,846 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:20,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,857 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,860 INFO L180 QuantifierPusher]: treesize reduction 65, result has 67.0 percent of original size [2021-11-03 05:23:20,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-03 05:23:20,863 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,864 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:133, output treesize:132 [2021-11-03 05:23:20,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,914 INFO L180 QuantifierPusher]: treesize reduction 54, result has 64.9 percent of original size [2021-11-03 05:23:20,915 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-03 05:23:20,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-03 05:23:20,925 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:20,926 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:20,955 INFO L354 Elim1Store]: treesize reduction 38, result has 51.9 percent of original size [2021-11-03 05:23:20,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 55 [2021-11-03 05:23:20,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:20,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-03 05:23:20,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:20,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:20,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:20,968 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:20,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:20,973 INFO L628 ElimStorePlain]: treesize reduction 29, result has 86.1 percent of original size [2021-11-03 05:23:20,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:20,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 05:23:20,976 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:20,977 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:179 [2021-11-03 05:23:20,982 INFO L180 QuantifierPusher]: treesize reduction 55, result has 54.2 percent of original size [2021-11-03 05:23:20,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 05:23:20,996 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 05:23:21,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:23:21,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 05:23:21,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 52 [2021-11-03 05:23:21,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541117245] [2021-11-03 05:23:21,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-03 05:23:21,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:23:21,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-03 05:23:21,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1425, Invalid=1881, Unknown=0, NotChecked=0, Total=3306 [2021-11-03 05:23:21,460 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 53 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:21,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:21,557 INFO L93 Difference]: Finished difference Result 80 states and 101 transitions. [2021-11-03 05:23:21,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-03 05:23:21,558 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-03 05:23:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:21,559 INFO L225 Difference]: With dead ends: 80 [2021-11-03 05:23:21,559 INFO L226 Difference]: Without dead ends: 58 [2021-11-03 05:23:21,561 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1562 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1425, Invalid=1881, Unknown=0, NotChecked=0, Total=3306 [2021-11-03 05:23:21,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-03 05:23:21,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-03 05:23:21,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.0526315789473684) internal successors, (60), 57 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:21,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2021-11-03 05:23:21,568 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 38 [2021-11-03 05:23:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:21,569 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2021-11-03 05:23:21,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:21,569 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2021-11-03 05:23:21,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 05:23:21,571 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:21,571 INFO L513 BasicCegarLoop]: trace histogram [34, 16, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:21,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:21,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2021-11-03 05:23:21,792 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:21,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1878074902, now seen corresponding path program 5 times [2021-11-03 05:23:21,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:23:21,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311569257] [2021-11-03 05:23:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:21,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:23:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:22,611 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-03 05:23:22,611 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:23:22,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311569257] [2021-11-03 05:23:22,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311569257] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 05:23:22,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237145725] [2021-11-03 05:23:22,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:23:22,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:22,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:22,613 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:23:22,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 05:23:29,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-03 05:23:29,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:23:29,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 05:23:29,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:23:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-03 05:23:30,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:23:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-11-03 05:23:31,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237145725] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:23:31,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1103293691] [2021-11-03 05:23:31,039 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 05:23:31,040 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 05:23:31,040 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 05:23:31,040 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 05:23:31,040 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 05:23:31,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,047 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-03 05:23:31,052 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-03 05:23:31,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 05:23:31,060 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 78=[|v_#valid_36|]} [2021-11-03 05:23:31,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-03 05:23:31,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:31,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 05:23:31,103 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,182 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 05:23:31,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 67 treesize of output 66 [2021-11-03 05:23:31,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:31,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:31,189 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,198 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 05:23:31,206 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,206 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:236, output treesize:175 [2021-11-03 05:23:31,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,214 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:31,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-03 05:23:31,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:31,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:31,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:31,259 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,269 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,271 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,281 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,283 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,296 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,301 INFO L180 QuantifierPusher]: treesize reduction 9, result has 96.1 percent of original size [2021-11-03 05:23:31,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 05:23:31,305 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,306 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:748, output treesize:224 [2021-11-03 05:23:31,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,416 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-03 05:23:31,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 05:23:31,443 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-03 05:23:31,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-03 05:23:31,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-11-03 05:23:31,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 581 [2021-11-03 05:23:31,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 85 [2021-11-03 05:23:31,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:31,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-03 05:23:31,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,561 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,563 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:23:31,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-11-03 05:23:31,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:31,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 05:23:31,602 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,617 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,619 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,633 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,634 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,648 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,649 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,733 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,778 INFO L180 QuantifierPusher]: treesize reduction 143, result has 78.9 percent of original size [2021-11-03 05:23:31,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 534 [2021-11-03 05:23:31,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 05:23:31,788 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:2125, output treesize:534 [2021-11-03 05:23:31,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,881 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:31,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 05:23:31,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-11-03 05:23:31,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:31,925 INFO L354 Elim1Store]: treesize reduction 19, result has 45.7 percent of original size [2021-11-03 05:23:31,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 30 [2021-11-03 05:23:31,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:31,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 05:23:31,928 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,937 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,939 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,947 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,949 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,956 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,958 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,965 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:23:31,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,967 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:31,984 INFO L354 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2021-11-03 05:23:31,985 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 1 case distinctions, treesize of input 43 treesize of output 1 [2021-11-03 05:23:31,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 05:23:31,986 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 05:23:31,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:31,995 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:31,999 INFO L180 QuantifierPusher]: treesize reduction 61, result has 63.3 percent of original size [2021-11-03 05:23:32,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-03 05:23:32,001 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:32,001 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:1084, output treesize:105 [2021-11-03 05:23:32,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,009 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:32,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,012 INFO L185 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size 31 [2021-11-03 05:23:32,015 INFO L185 QuantifierPusher]: treesize reduction 33, result has 76.8 percent of original size 109 [2021-11-03 05:23:32,021 INFO L180 QuantifierPusher]: treesize reduction 33, result has 82.1 percent of original size [2021-11-03 05:23:32,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:32,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-03 05:23:32,031 INFO L185 QuantifierPusher]: treesize reduction 56, result has 63.4 percent of original size 97 [2021-11-03 05:23:32,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:32,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:32,069 INFO L354 Elim1Store]: treesize reduction 38, result has 51.9 percent of original size [2021-11-03 05:23:32,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 55 [2021-11-03 05:23:32,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:32,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,074 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:32,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-03 05:23:32,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:32,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:32,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-03 05:23:32,081 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:32,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,091 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,094 INFO L180 QuantifierPusher]: treesize reduction 68, result has 72.5 percent of original size [2021-11-03 05:23:32,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 05:23:32,097 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:32,097 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:152, output treesize:179 [2021-11-03 05:23:32,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,147 INFO L180 QuantifierPusher]: treesize reduction 54, result has 64.9 percent of original size [2021-11-03 05:23:32,148 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:32,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-03 05:23:32,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-03 05:23:32,158 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:32,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:23:32,192 INFO L354 Elim1Store]: treesize reduction 38, result has 51.9 percent of original size [2021-11-03 05:23:32,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 55 [2021-11-03 05:23:32,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,195 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:32,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,197 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 05:23:32,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-11-03 05:23:32,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:32,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:32,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-03 05:23:32,204 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-11-03 05:23:32,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:23:32,209 INFO L628 ElimStorePlain]: treesize reduction 29, result has 86.1 percent of original size [2021-11-03 05:23:32,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:23:32,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 05:23:32,213 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 05:23:32,213 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:179 [2021-11-03 05:23:32,219 INFO L180 QuantifierPusher]: treesize reduction 55, result has 54.2 percent of original size [2021-11-03 05:23:32,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 05:23:32,225 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 05:23:32,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:23:32,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 05:23:32,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 19, 19] total 72 [2021-11-03 05:23:32,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548562444] [2021-11-03 05:23:32,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-03 05:23:32,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:23:32,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-03 05:23:32,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2637, Invalid=3369, Unknown=0, NotChecked=0, Total=6006 [2021-11-03 05:23:32,728 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 73 states, 73 states have (on average 1.1095890410958904) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:34,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:23:34,838 INFO L93 Difference]: Finished difference Result 385 states and 442 transitions. [2021-11-03 05:23:34,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-03 05:23:34,840 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 1.1095890410958904) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-03 05:23:34,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:23:34,842 INFO L225 Difference]: With dead ends: 385 [2021-11-03 05:23:34,843 INFO L226 Difference]: Without dead ends: 363 [2021-11-03 05:23:34,847 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4021 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4737, Invalid=7919, Unknown=0, NotChecked=0, Total=12656 [2021-11-03 05:23:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2021-11-03 05:23:34,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 112. [2021-11-03 05:23:34,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.027027027027027) internal successors, (114), 111 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:34,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 114 transitions. [2021-11-03 05:23:34,864 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 114 transitions. Word has length 56 [2021-11-03 05:23:34,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:23:34,864 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 114 transitions. [2021-11-03 05:23:34,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 1.1095890410958904) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:23:34,865 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 114 transitions. [2021-11-03 05:23:34,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 05:23:34,867 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:23:34,867 INFO L513 BasicCegarLoop]: trace histogram [52, 52, 1, 1, 1, 1, 1, 1] [2021-11-03 05:23:34,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:23:35,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2021-11-03 05:23:35,068 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:23:35,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:23:35,068 INFO L85 PathProgramCache]: Analyzing trace with hash -98618998, now seen corresponding path program 6 times [2021-11-03 05:23:35,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:23:35,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344525453] [2021-11-03 05:23:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:23:35,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:23:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:23:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2021-11-03 05:23:36,471 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:23:36,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344525453] [2021-11-03 05:23:36,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344525453] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 05:23:36,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635528112] [2021-11-03 05:23:36,472 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 05:23:36,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:23:36,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:23:36,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:23:36,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71ea7a73-06df-47a8-95a1-fdb778b1f44d/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process