./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-multidimensional/min-2-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/min-2-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF --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 68785685c781649dca8a870a36ccbd5837fb99f65c0418361b1a73f7848e1bda --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:52:49,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:52:49,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:52:49,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:52:49,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:52:49,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:52:49,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:52:49,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:52:49,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:52:49,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:52:49,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:52:49,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:52:49,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:52:49,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:52:49,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:52:49,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:52:49,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:52:49,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:52:49,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:52:49,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:52:49,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:52:49,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:52:49,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:52:49,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:52:49,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:52:49,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:52:49,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:52:49,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:52:49,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:52:49,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:52:49,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:52:49,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:52:49,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:52:49,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:52:49,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:52:49,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:52:49,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:52:49,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:52:49,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:52:49,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:52:49,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:52:49,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:52:49,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:52:49,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:52:49,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:52:49,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:52:49,826 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:52:49,826 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:52:49,827 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:52:49,827 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:52:49,827 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:52:49,827 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:52:49,827 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:52:49,828 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:52:49,828 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:52:49,828 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:52:49,828 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:52:49,828 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:52:49,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:52:49,829 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:52:49,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:52:49,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:52:49,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:52:49,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:52:49,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:52:49,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:52:49,830 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:52:49,831 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:52:49,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:52:49,831 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:52:49,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:52:49,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:52:49,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:52:49,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:52:49,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:52:49,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:52:49,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:52:49,833 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:52:49,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:52:49,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:52:49,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:52:49,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:52:49,833 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_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68785685c781649dca8a870a36ccbd5837fb99f65c0418361b1a73f7848e1bda [2021-11-12 23:52:50,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:52:50,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:52:50,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:52:50,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:52:50,130 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:52:50,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/array-multidimensional/min-2-u.c [2021-11-12 23:52:50,218 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/data/4adb34ca3/3737bc7ce7594757b56ac00f3e60f96c/FLAG733ebb3ad [2021-11-12 23:52:50,631 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:52:50,632 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/sv-benchmarks/c/array-multidimensional/min-2-u.c [2021-11-12 23:52:50,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/data/4adb34ca3/3737bc7ce7594757b56ac00f3e60f96c/FLAG733ebb3ad [2021-11-12 23:52:51,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/data/4adb34ca3/3737bc7ce7594757b56ac00f3e60f96c [2021-11-12 23:52:51,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:52:51,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:52:51,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:52:51,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:52:51,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:52:51,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b6b0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51, skipping insertion in model container [2021-11-12 23:52:51,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:52:51,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:52:51,239 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_95ab6f5c-ecf4-462d-86f8-620ec3022d84/sv-benchmarks/c/array-multidimensional/min-2-u.c[319,332] [2021-11-12 23:52:51,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:52:51,263 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:52:51,273 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_95ab6f5c-ecf4-462d-86f8-620ec3022d84/sv-benchmarks/c/array-multidimensional/min-2-u.c[319,332] [2021-11-12 23:52:51,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:52:51,295 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:52:51,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51 WrapperNode [2021-11-12 23:52:51,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:52:51,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:52:51,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:52:51,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:52:51,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:52:51,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:52:51,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:52:51,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:52:51,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:52:51,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:52:51,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:52:51,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:52:51,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (1/1) ... [2021-11-12 23:52:51,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:52:51,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:52:51,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:52:51,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:52:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:52:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:52:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:52:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:52:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:52:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:52:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:52:51,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:52:51,811 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-12 23:52:51,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:52:51 BoogieIcfgContainer [2021-11-12 23:52:51,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:52:51,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:52:51,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:52:51,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:52:51,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:52:51" (1/3) ... [2021-11-12 23:52:51,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c75979a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:52:51, skipping insertion in model container [2021-11-12 23:52:51,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:52:51" (2/3) ... [2021-11-12 23:52:51,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c75979a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:52:51, skipping insertion in model container [2021-11-12 23:52:51,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:52:51" (3/3) ... [2021-11-12 23:52:51,822 INFO L111 eAbstractionObserver]: Analyzing ICFG min-2-u.c [2021-11-12 23:52:51,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:52:51,828 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:52:51,875 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:52:51,882 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 [2021-11-12 23:52:51,883 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:52:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:51,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:52:51,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:51,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:51,904 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:51,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1895355255, now seen corresponding path program 1 times [2021-11-12 23:52:51,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:52:51,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254561114] [2021-11-12 23:52:51,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:51,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:52:52,000 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:52:52,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051724014] [2021-11-12 23:52:52,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:52,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:52,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:52:52,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:52:52,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:52:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:52,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:52:52,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:52:52,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:52:52,272 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:52:52,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254561114] [2021-11-12 23:52:52,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:52,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051724014] [2021-11-12 23:52:52,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051724014] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:52:52,274 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:52:52,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 23:52:52,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511566270] [2021-11-12 23:52:52,278 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:52:52,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:52:52,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:52:52,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:52:52,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:52:52,327 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:52,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:52,399 INFO L93 Difference]: Finished difference Result 24 states and 37 transitions. [2021-11-12 23:52:52,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:52:52,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-12 23:52:52,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:52,410 INFO L225 Difference]: With dead ends: 24 [2021-11-12 23:52:52,410 INFO L226 Difference]: Without dead ends: 14 [2021-11-12 23:52:52,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:52:52,417 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.46ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.96ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:52,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 34 Unknown, 0 Unchecked, 1.46ms Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 47.96ms Time] [2021-11-12 23:52:52,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-12 23:52:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-12 23:52:52,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2021-11-12 23:52:52,451 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 20 transitions. Word has length 7 [2021-11-12 23:52:52,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:52,451 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 20 transitions. [2021-11-12 23:52:52,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:52,452 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2021-11-12 23:52:52,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:52:52,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:52,453 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:52,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:52,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:52,679 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:52,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1769997685, now seen corresponding path program 1 times [2021-11-12 23:52:52,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:52:52,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556403022] [2021-11-12 23:52:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:52,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:52:52,697 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:52:52,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074458613] [2021-11-12 23:52:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:52,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:52,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:52:52,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:52:52,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:52:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:52,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:52:52,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:52:52,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:52,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:52:52,914 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:52:52,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556403022] [2021-11-12 23:52:52,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:52,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074458613] [2021-11-12 23:52:52,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074458613] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:52:52,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:52:52,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:52:52,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101192597] [2021-11-12 23:52:52,919 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:52:52,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:52:52,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:52:52,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:52:52,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:52:52,928 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 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) [2021-11-12 23:52:53,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:53,029 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2021-11-12 23:52:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:52:53,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 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 11 [2021-11-12 23:52:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:53,033 INFO L225 Difference]: With dead ends: 39 [2021-11-12 23:52:53,033 INFO L226 Difference]: Without dead ends: 28 [2021-11-12 23:52:53,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:52:53,039 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 52 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.26ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:53,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 7 Invalid, 64 Unknown, 0 Unchecked, 4.26ms Time], IncrementalHoareTripleChecker [42 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 60.23ms Time] [2021-11-12 23:52:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-12 23:52:53,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-11-12 23:52:53,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-11-12 23:52:53,064 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 11 [2021-11-12 23:52:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:53,064 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-12 23:52:53,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 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) [2021-11-12 23:52:53,065 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-11-12 23:52:53,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:52:53,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:53,066 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:53,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:53,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-12 23:52:53,275 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:53,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:53,276 INFO L85 PathProgramCache]: Analyzing trace with hash 634082699, now seen corresponding path program 1 times [2021-11-12 23:52:53,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:52:53,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426476388] [2021-11-12 23:52:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:53,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:52:53,310 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:52:53,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802354882] [2021-11-12 23:52:53,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:53,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:53,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:52:53,316 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:52:53,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:52:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:53,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:52:53,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:53,502 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:52:53,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:53,583 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:52:53,584 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:52:53,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426476388] [2021-11-12 23:52:53,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:53,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802354882] [2021-11-12 23:52:53,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802354882] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:52:53,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [691998195] [2021-11-12 23:52:53,603 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-12 23:52:53,604 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:52:53,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:52:53,612 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:52:53,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:52:53,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,652 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:53,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:52:53,658 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:53,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:52:53,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:52:53,698 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 36=[|v_#valid_28|]} [2021-11-12 23:52:53,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:52:53,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:52:53,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:52:53,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:53,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:53,857 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:53,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 38 [2021-11-12 23:52:53,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:53,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:53,915 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:53,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:53,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:53,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:52:53,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:53,986 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:52:54,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:52:54,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,025 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:52:54,033 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:52:54,038 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:52:54,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:52:54,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:52:54,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,062 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:54,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:52:54,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:52:54,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:52:54,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:54,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-11-12 23:52:54,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:52:54,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:52:54,109 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:54,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,128 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:52:54,146 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:54,148 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:52:54,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:52:54,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,453 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,463 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:52:54,473 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:52:54,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,493 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:54,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:52:54,495 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:54,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:52:54,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:52:54,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:54,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:54,520 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:54,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:54,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2021-11-12 23:52:54,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:52:54,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:52:54,538 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:54,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,548 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,554 INFO L180 QuantifierPusher]: treesize reduction 54, result has 58.8 percent of original size [2021-11-12 23:52:54,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:52:54,562 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:54,567 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:87 [2021-11-12 23:52:54,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,706 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:52:54,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:54,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:54,725 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:52:54,735 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,737 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:54,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:52:54,739 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:54,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:52:54,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:52:54,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:54,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:54,753 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:54,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,757 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:52:54,764 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:54,765 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:52:54,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,847 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:52:54,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:54,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:54,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:54,987 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:54,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:55,009 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:55,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:55,026 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:55,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:55,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:52:55,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:55,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:55,054 INFO L185 QuantifierPusher]: treesize reduction 32, result has 79.5 percent of original size 124 [2021-11-12 23:52:55,075 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:52:55,098 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:52:55,124 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:55,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:55,137 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:52:55,143 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:52:55,151 INFO L180 QuantifierPusher]: treesize reduction 138, result has 31.7 percent of original size [2021-11-12 23:52:55,157 INFO L185 QuantifierPusher]: treesize reduction 56, result has 1.8 percent of original size 1 [2021-11-12 23:52:55,158 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:52:55,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [691998195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:52:55,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:52:55,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 12 [2021-11-12 23:52:55,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096042597] [2021-11-12 23:52:55,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:52:55,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:52:55,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:52:55,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:52:55,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:52:55,811 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:55,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:55,906 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2021-11-12 23:52:55,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:52:55,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-12 23:52:55,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:55,908 INFO L225 Difference]: With dead ends: 37 [2021-11-12 23:52:55,908 INFO L226 Difference]: Without dead ends: 27 [2021-11-12 23:52:55,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:52:55,909 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.06ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.45ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:55,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 52 Unknown, 0 Unchecked, 1.06ms Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 80.45ms Time] [2021-11-12 23:52:55,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-12 23:52:55,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-11-12 23:52:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:55,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-11-12 23:52:55,923 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 15 [2021-11-12 23:52:55,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:55,923 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-11-12 23:52:55,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:55,924 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-11-12 23:52:55,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 23:52:55,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:55,925 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:55,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:56,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:56,139 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:56,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:56,139 INFO L85 PathProgramCache]: Analyzing trace with hash -732179009, now seen corresponding path program 1 times [2021-11-12 23:52:56,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:52:56,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301882733] [2021-11-12 23:52:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:56,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:52:56,146 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:52:56,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137775912] [2021-11-12 23:52:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:56,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:56,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:52:56,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:52:56,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 23:52:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:56,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:52:56,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:56,265 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-12 23:52:56,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-12 23:52:56,326 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:52:56,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301882733] [2021-11-12 23:52:56,326 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:56,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137775912] [2021-11-12 23:52:56,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137775912] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:52:56,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1654654433] [2021-11-12 23:52:56,329 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:52:56,329 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:52:56,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:52:56,330 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:52:56,330 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:52:56,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,339 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:52:56,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:52:56,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:52:56,354 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 36=[|v_#valid_29|]} [2021-11-12 23:52:56,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:52:56,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:52:56,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:52:56,376 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,384 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 38 [2021-11-12 23:52:56,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:56,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:56,418 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,426 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:52:56,430 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,430 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:52:56,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:52:56,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,449 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:52:56,453 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:52:56,455 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:52:56,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,465 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:56,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:52:56,472 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,473 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:52:56,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:52:56,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:52:56,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:52:56,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-11-12 23:52:56,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:52:56,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:52:56,498 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,505 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:52:56,517 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,517 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:52:56,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:52:56,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,682 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,689 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:52:56,697 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:52:56,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,710 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,711 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:56,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:52:56,713 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:56,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:52:56,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:52:56,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:56,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:56,735 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:56,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2021-11-12 23:52:56,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:52:56,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:52:56,746 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,753 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,759 INFO L180 QuantifierPusher]: treesize reduction 54, result has 58.8 percent of original size [2021-11-12 23:52:56,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:52:56,763 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,763 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:87 [2021-11-12 23:52:56,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,855 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:52:56,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:56,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:56,868 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:52:56,871 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,872 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:56,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:52:56,874 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:56,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:56,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:52:56,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:52:56,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:56,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:56,886 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:56,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:52:56,894 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:56,894 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:52:56,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,944 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:52:56,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:56,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:56,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:57,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:57,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,112 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:57,118 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,127 INFO L185 QuantifierPusher]: treesize reduction 74, result has 47.5 percent of original size 67 [2021-11-12 23:52:57,151 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:52:57,176 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:52:57,208 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:57,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,222 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:52:57,230 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:52:57,238 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:52:57,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:52:57,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:52:57,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,285 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:52:57,292 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:52:57,299 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:52:57,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:57,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,337 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:52:57,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:57,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,348 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:52:57,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,379 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:52:57,384 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:52:57,390 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:52:57,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:52:57,402 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:52:57,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:52:57,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,410 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:57,418 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:52:57,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:57,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,430 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:52:57,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:57,466 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:52:57,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:57,511 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:52:57,518 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:52:57,521 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:52:58,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:58,446 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:52:58,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-11-12 23:52:58,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80110032] [2021-11-12 23:52:58,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:52:58,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:52:58,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:52:58,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:52:58,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:52:58,448 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:58,597 INFO L93 Difference]: Finished difference Result 80 states and 108 transitions. [2021-11-12 23:52:58,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:52:58,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-12 23:52:58,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:58,599 INFO L225 Difference]: With dead ends: 80 [2021-11-12 23:52:58,599 INFO L226 Difference]: Without dead ends: 60 [2021-11-12 23:52:58,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:52:58,600 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 68 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.05ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.90ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:58,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 19 Invalid, 107 Unknown, 0 Unchecked, 2.05ms Time], IncrementalHoareTripleChecker [63 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 85.90ms Time] [2021-11-12 23:52:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-12 23:52:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49. [2021-11-12 23:52:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.25) internal successors, (60), 48 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) [2021-11-12 23:52:58,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2021-11-12 23:52:58,619 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 19 [2021-11-12 23:52:58,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:58,619 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2021-11-12 23:52:58,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:52:58,620 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2021-11-12 23:52:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:52:58,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:58,621 INFO L514 BasicCegarLoop]: trace histogram [12, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:58,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:58,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:58,842 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:58,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1339630975, now seen corresponding path program 2 times [2021-11-12 23:52:58,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:52:58,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734300790] [2021-11-12 23:52:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:52:58,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:52:58,849 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:52:58,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230079680] [2021-11-12 23:52:58,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:52:58,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:52:58,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:52:58,854 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:52:58,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:52:58,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-12 23:52:58,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:52:58,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:52:58,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 23:52:59,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 23:52:59,131 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:52:59,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734300790] [2021-11-12 23:52:59,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:52:59,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230079680] [2021-11-12 23:52:59,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230079680] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:52:59,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [793007655] [2021-11-12 23:52:59,134 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:52:59,134 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:52:59,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:52:59,135 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:52:59,135 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:52:59,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,143 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:52:59,145 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:52:59,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:52:59,154 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 36=[|v_#valid_30|]} [2021-11-12 23:52:59,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:52:59,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:52:59,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:52:59,176 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,183 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 38 [2021-11-12 23:52:59,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:59,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:59,217 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:52:59,229 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,229 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:52:59,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:52:59,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,256 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:52:59,260 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:52:59,264 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:52:59,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,272 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:52:59,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:52:59,276 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,277 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:52:59,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-12 23:52:59,281 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:52:59,289 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size 157 [2021-11-12 23:52:59,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:52:59,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-12 23:52:59,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:59,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:59,308 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,315 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,319 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:52:59,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-12 23:52:59,323 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,323 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:158, output treesize:158 [2021-11-12 23:52:59,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 23:52:59,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,442 INFO L185 QuantifierPusher]: treesize reduction 135, result has 0.7 percent of original size 1 [2021-11-12 23:52:59,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,449 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:59,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:52:59,453 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:59,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:52:59,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:52:59,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:59,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:59,469 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:52:59,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:59,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:59,480 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,495 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,501 INFO L180 QuantifierPusher]: treesize reduction 112, result has 58.4 percent of original size [2021-11-12 23:52:59,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:52:59,506 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:52:59,506 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:276, output treesize:178 [2021-11-12 23:52:59,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,578 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:52:59,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:52:59,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:52:59,599 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.2 percent of original size [2021-11-12 23:52:59,601 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,602 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:59,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:52:59,604 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:59,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-12 23:52:59,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:52:59,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:59,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:59,617 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,620 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-12 23:52:59,624 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,624 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:90 [2021-11-12 23:52:59,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,690 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:52:59,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:59,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:59,699 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:52:59,701 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,703 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:52:59,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:52:59,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:52:59,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:52:59,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:52:59,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:59,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:52:59,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,719 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:52:59,722 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:52:59,722 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:52:59,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,757 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:52:59,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:52:59,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,859 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,867 INFO L185 QuantifierPusher]: treesize reduction 32, result has 79.5 percent of original size 124 [2021-11-12 23:52:59,871 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:52:59,888 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:52:59,902 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:52:59,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:52:59,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,925 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:52:59,928 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:52:59,933 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:52:59,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:52:59,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,940 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.3 percent of original size 107 [2021-11-12 23:52:59,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:52:59,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:52:59,987 INFO L185 QuantifierPusher]: treesize reduction 23, result has 87.3 percent of original size 158 [2021-11-12 23:52:59,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,026 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:53:00,031 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:53:00,036 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:53:00,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:53:00,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,060 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:00,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:00,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:00,072 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:53:00,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,093 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:00,098 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:00,104 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:53:00,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:00,111 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:53:00,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:00,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:00,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:00,124 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:00,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:00,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:00,134 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:53:00,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:00,154 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:00,160 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:00,162 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:53:01,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:01,027 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:53:01,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-11-12 23:53:01,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729352658] [2021-11-12 23:53:01,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:53:01,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:53:01,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:53:01,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:53:01,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:53:01,029 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:53:01,170 INFO L93 Difference]: Finished difference Result 185 states and 231 transitions. [2021-11-12 23:53:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:53:01,171 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-12 23:53:01,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:53:01,174 INFO L225 Difference]: With dead ends: 185 [2021-11-12 23:53:01,174 INFO L226 Difference]: Without dead ends: 163 [2021-11-12 23:53:01,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:53:01,176 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 81 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.71ms IncrementalHoareTripleChecker+Time [2021-11-12 23:53:01,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 16 Invalid, 74 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [30 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 72.71ms Time] [2021-11-12 23:53:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-12 23:53:01,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 73. [2021-11-12 23:53:01,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 72 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 87 transitions. [2021-11-12 23:53:01,201 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 87 transitions. Word has length 31 [2021-11-12 23:53:01,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:53:01,202 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 87 transitions. [2021-11-12 23:53:01,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2021-11-12 23:53:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 23:53:01,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:53:01,204 INFO L514 BasicCegarLoop]: trace histogram [24, 12, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:53:01,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:53:01,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-11-12 23:53:01,419 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:53:01,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:53:01,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1210164389, now seen corresponding path program 3 times [2021-11-12 23:53:01,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:53:01,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675553717] [2021-11-12 23:53:01,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:53:01,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:53:01,427 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:53:01,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928646140] [2021-11-12 23:53:01,427 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:53:01,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:53:01,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:53:01,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:53:01,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 23:53:01,495 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:53:01,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:53:01,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 23:53:01,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:53:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 15 proven. 310 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-12 23:53:01,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:53:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 15 proven. 310 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-12 23:53:02,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:53:02,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675553717] [2021-11-12 23:53:02,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:02,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928646140] [2021-11-12 23:53:02,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928646140] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:53:02,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [657934587] [2021-11-12 23:53:02,042 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:53:02,042 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:53:02,042 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:53:02,042 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:53:02,042 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:53:02,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:53:02,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:53:02,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:02,066 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 36=[|v_#valid_31|]} [2021-11-12 23:53:02,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:53:02,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:02,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:02,090 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,094 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 38 [2021-11-12 23:53:02,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:02,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:02,128 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,131 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:53:02,135 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,135 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:53:02,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:53:02,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:53:02,153 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-11-12 23:53:02,155 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:53:02,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,161 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,162 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:53:02,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:53:02,164 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,165 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:02,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-12 23:53:02,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:53:02,171 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size 157 [2021-11-12 23:53:02,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:02,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-12 23:53:02,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:02,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:02,187 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,192 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,195 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:53:02,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-12 23:53:02,199 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,199 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:158, output treesize:158 [2021-11-12 23:53:02,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 23:53:02,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,321 INFO L185 QuantifierPusher]: treesize reduction 135, result has 0.7 percent of original size 1 [2021-11-12 23:53:02,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,327 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,328 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:02,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:02,330 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:02,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:53:02,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:02,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:02,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:02,351 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:02,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:02,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:02,361 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,375 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,380 INFO L180 QuantifierPusher]: treesize reduction 112, result has 58.4 percent of original size [2021-11-12 23:53:02,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:53:02,383 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:53:02,384 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:276, output treesize:178 [2021-11-12 23:53:02,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,445 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:53:02,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:02,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:02,453 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.2 percent of original size [2021-11-12 23:53:02,455 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,456 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:02,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:02,458 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:02,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-12 23:53:02,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:02,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:02,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:02,467 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-12 23:53:02,473 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,473 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:90 [2021-11-12 23:53:02,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,530 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:02,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:02,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:02,537 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:53:02,540 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,541 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:02,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:02,542 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:02,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:53:02,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:02,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:02,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:02,552 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,554 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:53:02,557 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:02,558 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:53:02,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,589 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:02,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:02,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,691 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,698 INFO L185 QuantifierPusher]: treesize reduction 74, result has 47.5 percent of original size 67 [2021-11-12 23:53:02,708 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:53:02,718 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:53:02,730 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:02,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,738 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:53:02,741 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:53:02,746 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:53:02,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:53:02,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:53:02,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,771 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:53:02,775 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:53:02,779 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:53:02,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:53:02,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,802 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:02,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:02,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,809 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:53:02,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,827 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:02,831 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:02,835 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:53:02,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:02,841 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:53:02,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:02,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:02,852 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:02,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:02,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:02,860 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:53:02,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:02,877 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:02,881 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:02,884 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:53:03,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:03,864 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:53:03,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-11-12 23:53:03,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933076069] [2021-11-12 23:53:03,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:53:03,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-12 23:53:03,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:53:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-12 23:53:03,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=764, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:53:03,869 INFO L87 Difference]: Start difference. First operand 73 states and 87 transitions. Second operand has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:53:04,674 INFO L93 Difference]: Finished difference Result 289 states and 343 transitions. [2021-11-12 23:53:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-12 23:53:04,675 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-12 23:53:04,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:53:04,681 INFO L225 Difference]: With dead ends: 289 [2021-11-12 23:53:04,681 INFO L226 Difference]: Without dead ends: 267 [2021-11-12 23:53:04,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 143 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1151 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=830, Invalid=2476, Unknown=0, NotChecked=0, Total=3306 [2021-11-12 23:53:04,686 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 162 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 268.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.92ms SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 347.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:53:04,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 194 Invalid, 575 Unknown, 0 Unchecked, 3.92ms Time], IncrementalHoareTripleChecker [241 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 347.78ms Time] [2021-11-12 23:53:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-12 23:53:04,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 89. [2021-11-12 23:53:04,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 88 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 105 transitions. [2021-11-12 23:53:04,740 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 105 transitions. Word has length 55 [2021-11-12 23:53:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:53:04,741 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 105 transitions. [2021-11-12 23:53:04,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 26 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:04,741 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 105 transitions. [2021-11-12 23:53:04,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-12 23:53:04,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:53:04,744 INFO L514 BasicCegarLoop]: trace histogram [36, 12, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:53:04,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:53:04,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable212 [2021-11-12 23:53:04,962 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:53:04,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:53:04,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1251968189, now seen corresponding path program 4 times [2021-11-12 23:53:04,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:53:04,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653695550] [2021-11-12 23:53:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:53:04,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:53:04,969 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:53:04,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805298644] [2021-11-12 23:53:04,970 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:53:04,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:53:04,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:53:04,973 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:53:04,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:53:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:53:05,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:53:05,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:53:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 51 proven. 21 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2021-11-12 23:53:05,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:53:05,533 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 51 proven. 21 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2021-11-12 23:53:05,533 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:53:05,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653695550] [2021-11-12 23:53:05,534 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:05,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805298644] [2021-11-12 23:53:05,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805298644] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:53:05,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1094452134] [2021-11-12 23:53:05,536 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:53:05,536 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:53:05,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:53:05,537 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:53:05,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:53:05,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,544 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:53:05,545 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:53:05,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:05,550 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 36=[|v_#valid_32|]} [2021-11-12 23:53:05,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:53:05,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:05,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:05,573 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,576 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 38 [2021-11-12 23:53:05,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:05,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:05,610 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,614 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:53:05,618 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,618 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:53:05,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:53:05,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,633 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:53:05,636 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:53:05,638 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:53:05,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,651 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:53:05,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:53:05,653 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,654 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:05,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:53:05,656 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:05,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:05,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:05,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-11-12 23:53:05,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:53:05,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:53:05,676 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:53:05,689 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,689 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:53:05,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:53:05,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,793 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,796 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:53:05,799 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:53:05,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,804 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,805 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:05,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:05,807 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:05,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:05,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:05,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:05,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:05,822 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:05,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:05,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:05,831 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,840 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,845 INFO L180 QuantifierPusher]: treesize reduction 107, result has 59.5 percent of original size [2021-11-12 23:53:05,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:53:05,849 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:53:05,849 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:178 [2021-11-12 23:53:05,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,899 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:05,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:05,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:05,910 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:53:05,914 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,915 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:05,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:05,917 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:05,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:05,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:53:05,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:05,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:05,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:05,940 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,942 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:05,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:53:05,945 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:05,945 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:53:05,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,976 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:05,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:05,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:05,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,050 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:06,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:06,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,070 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:06,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,076 INFO L185 QuantifierPusher]: treesize reduction 74, result has 47.5 percent of original size 67 [2021-11-12 23:53:06,084 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:53:06,095 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:53:06,105 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:06,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,112 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:53:06,113 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:53:06,125 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:53:06,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:53:06,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:53:06,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,152 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:53:06,156 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:53:06,160 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:53:06,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:53:06,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,182 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:06,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:06,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,188 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:53:06,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,213 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:53:06,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,241 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:06,245 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:06,249 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:53:06,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:06,255 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:53:06,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:06,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:06,266 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:06,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:06,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,272 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:53:06,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:06,306 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:53:06,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:06,345 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:06,350 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:06,352 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:53:07,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:07,030 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:53:07,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-11-12 23:53:07,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032327956] [2021-11-12 23:53:07,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:53:07,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:53:07,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:53:07,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:53:07,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=336, Unknown=0, NotChecked=0, Total=552 [2021-11-12 23:53:07,032 INFO L87 Difference]: Start difference. First operand 89 states and 105 transitions. Second operand has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:07,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:53:07,382 INFO L93 Difference]: Finished difference Result 284 states and 382 transitions. [2021-11-12 23:53:07,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-12 23:53:07,383 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-12 23:53:07,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:53:07,384 INFO L225 Difference]: With dead ends: 284 [2021-11-12 23:53:07,385 INFO L226 Difference]: Without dead ends: 204 [2021-11-12 23:53:07,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=363, Invalid=567, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:53:07,386 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 254 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.46ms SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 199.99ms IncrementalHoareTripleChecker+Time [2021-11-12 23:53:07,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 43 Invalid, 280 Unknown, 0 Unchecked, 2.46ms Time], IncrementalHoareTripleChecker [207 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 199.99ms Time] [2021-11-12 23:53:07,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-12 23:53:07,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 177. [2021-11-12 23:53:07,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.1420454545454546) internal successors, (201), 176 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 201 transitions. [2021-11-12 23:53:07,441 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 201 transitions. Word has length 71 [2021-11-12 23:53:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:53:07,442 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 201 transitions. [2021-11-12 23:53:07,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:07,442 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 201 transitions. [2021-11-12 23:53:07,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-12 23:53:07,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:53:07,444 INFO L514 BasicCegarLoop]: trace histogram [84, 28, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:53:07,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:53:07,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable292 [2021-11-12 23:53:07,671 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:53:07,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:53:07,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1420652477, now seen corresponding path program 5 times [2021-11-12 23:53:07,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:53:07,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724153922] [2021-11-12 23:53:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:53:07,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:53:07,683 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:53:07,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1616756256] [2021-11-12 23:53:07,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:53:07,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:53:07,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:53:07,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:53:07,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-12 23:53:23,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-11-12 23:53:23,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:53:23,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 23:53:23,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:53:23,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4464 backedges. 227 proven. 105 refuted. 0 times theorem prover too weak. 4132 trivial. 0 not checked. [2021-11-12 23:53:23,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:53:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4464 backedges. 2 proven. 330 refuted. 0 times theorem prover too weak. 4132 trivial. 0 not checked. [2021-11-12 23:53:24,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:53:24,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724153922] [2021-11-12 23:53:24,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:24,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616756256] [2021-11-12 23:53:24,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616756256] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:53:24,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2139860480] [2021-11-12 23:53:24,068 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:53:24,068 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:53:24,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:53:24,068 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:53:24,069 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:53:24,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,078 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:53:24,079 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:53:24,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:24,084 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 36=[|v_#valid_33|]} [2021-11-12 23:53:24,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:53:24,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:24,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:24,106 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,110 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 38 [2021-11-12 23:53:24,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:24,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:24,139 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:53:24,146 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,146 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:53:24,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:53:24,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:53:24,162 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-11-12 23:53:24,164 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:53:24,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,169 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:53:24,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:53:24,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:24,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:53:24,175 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:24,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:24,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-11-12 23:53:24,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:53:24,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:53:24,191 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,196 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:53:24,201 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,201 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:53:24,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:53:24,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,290 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,294 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:53:24,297 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:53:24,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,302 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,303 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:24,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:24,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:24,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:24,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:24,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:24,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:24,320 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:24,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2021-11-12 23:53:24,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:53:24,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:53:24,329 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,333 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,336 INFO L180 QuantifierPusher]: treesize reduction 54, result has 58.8 percent of original size [2021-11-12 23:53:24,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:53:24,337 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,338 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:87 [2021-11-12 23:53:24,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,411 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:24,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:24,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:24,417 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:53:24,419 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,420 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,420 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:24,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:24,421 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:24,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:53:24,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:24,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:24,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:24,430 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,432 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:53:24,435 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:24,435 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:53:24,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,465 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:24,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:24,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,528 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,537 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,553 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,556 INFO L185 QuantifierPusher]: treesize reduction 32, result has 79.5 percent of original size 124 [2021-11-12 23:53:24,558 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:53:24,567 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:53:24,579 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:53:24,592 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:24,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,598 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:53:24,600 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:53:24,604 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:53:24,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:53:24,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:53:24,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,628 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:53:24,632 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:53:24,636 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:53:24,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:53:24,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,658 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:24,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:24,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,666 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:53:24,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,685 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:24,689 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:24,693 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:53:24,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:24,698 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:53:24,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:24,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:24,710 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:24,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:24,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:24,716 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:53:24,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:24,751 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:24,764 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:24,766 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:53:25,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:25,602 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:53:25,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2021-11-12 23:53:25,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878101280] [2021-11-12 23:53:25,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:53:25,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-12 23:53:25,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:53:25,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-12 23:53:25,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=904, Unknown=0, NotChecked=0, Total=1560 [2021-11-12 23:53:25,606 INFO L87 Difference]: Start difference. First operand 177 states and 201 transitions. Second operand has 34 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:26,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:53:26,462 INFO L93 Difference]: Finished difference Result 572 states and 750 transitions. [2021-11-12 23:53:26,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-12 23:53:26,462 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-11-12 23:53:26,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:53:26,465 INFO L225 Difference]: With dead ends: 572 [2021-11-12 23:53:26,465 INFO L226 Difference]: Without dead ends: 412 [2021-11-12 23:53:26,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 357 SyntacticMatches, 8 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1280 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1211, Invalid=1759, Unknown=0, NotChecked=0, Total=2970 [2021-11-12 23:53:26,471 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 476 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 254.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.58ms SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 338.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:53:26,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 91 Invalid, 452 Unknown, 0 Unchecked, 6.58ms Time], IncrementalHoareTripleChecker [312 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 338.00ms Time] [2021-11-12 23:53:26,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-12 23:53:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 353. [2021-11-12 23:53:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.1164772727272727) internal successors, (393), 352 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 393 transitions. [2021-11-12 23:53:26,542 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 393 transitions. Word has length 135 [2021-11-12 23:53:26,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:53:26,542 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 393 transitions. [2021-11-12 23:53:26,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 393 transitions. [2021-11-12 23:53:26,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-12 23:53:26,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:53:26,559 INFO L514 BasicCegarLoop]: trace histogram [180, 60, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:53:26,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:53:26,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable376 [2021-11-12 23:53:26,779 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:53:26,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:53:26,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1911899581, now seen corresponding path program 6 times [2021-11-12 23:53:26,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:53:26,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377583436] [2021-11-12 23:53:26,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:53:26,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:53:26,795 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:53:26,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429407429] [2021-11-12 23:53:26,811 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:53:26,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:53:26,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:53:26,812 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:53:26,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-12 23:53:27,011 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:53:27,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:53:27,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-12 23:53:27,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:53:28,560 INFO L134 CoverageAnalysis]: Checked inductivity of 19120 backedges. 435 proven. 14466 refuted. 0 times theorem prover too weak. 4219 trivial. 0 not checked. [2021-11-12 23:53:28,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:53:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 19120 backedges. 435 proven. 14466 refuted. 0 times theorem prover too weak. 4219 trivial. 0 not checked. [2021-11-12 23:53:30,037 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:53:30,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377583436] [2021-11-12 23:53:30,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:30,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429407429] [2021-11-12 23:53:30,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429407429] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:53:30,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [879870766] [2021-11-12 23:53:30,040 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:53:30,041 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:53:30,041 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:53:30,041 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:53:30,041 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:53:30,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:53:30,058 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:53:30,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:30,063 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 36=[|v_#valid_34|]} [2021-11-12 23:53:30,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:53:30,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:30,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:30,086 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,089 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 38 [2021-11-12 23:53:30,118 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:30,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:30,121 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,125 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,126 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:53:30,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,129 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:53:30,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:53:30,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-12 23:53:30,144 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-11-12 23:53:30,146 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:53:30,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,151 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,152 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:53:30,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-12 23:53:30,154 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,155 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:30,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-12 23:53:30,157 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:53:30,160 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size 157 [2021-11-12 23:53:30,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:30,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-12 23:53:30,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:30,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:30,174 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,179 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,181 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-11-12 23:53:30,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-12 23:53:30,184 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,184 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:158, output treesize:158 [2021-11-12 23:53:30,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-11-12 23:53:30,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,286 INFO L185 QuantifierPusher]: treesize reduction 135, result has 0.7 percent of original size 1 [2021-11-12 23:53:30,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,291 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,292 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:30,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:30,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:30,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:53:30,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:30,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:30,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:30,307 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:30,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:30,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:30,315 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,326 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,331 INFO L180 QuantifierPusher]: treesize reduction 112, result has 58.4 percent of original size [2021-11-12 23:53:30,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:53:30,334 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:53:30,334 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:276, output treesize:178 [2021-11-12 23:53:30,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,380 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:53:30,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:30,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:30,386 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.2 percent of original size [2021-11-12 23:53:30,387 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:30,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:30,390 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:30,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-12 23:53:30,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:30,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:30,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:30,399 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-12 23:53:30,404 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,404 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:83, output treesize:90 [2021-11-12 23:53:30,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,462 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:30,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:30,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:30,473 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:53:30,476 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,477 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:30,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:30,479 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:30,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:53:30,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:30,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:30,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:30,491 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,493 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:53:30,495 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:30,495 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:53:30,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,524 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:30,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:30,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,614 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,631 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-12 23:53:30,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,645 INFO L185 QuantifierPusher]: treesize reduction 32, result has 79.5 percent of original size 124 [2021-11-12 23:53:30,656 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:53:30,665 INFO L185 QuantifierPusher]: treesize reduction 138, result has 56.6 percent of original size 180 [2021-11-12 23:53:30,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:30,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,684 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:53:30,687 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:53:30,690 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:53:30,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:53:30,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:53:30,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,715 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:53:30,719 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:53:30,722 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:53:30,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:30,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,744 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:30,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:30,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,751 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:53:30,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,775 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:53:30,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,803 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:30,807 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:30,810 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:53:30,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:30,822 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:53:30,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:30,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:30,834 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:30,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:30,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,841 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:53:30,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:30,864 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:53:30,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:30,893 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:30,897 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:30,900 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:53:32,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:32,557 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:53:32,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 78 [2021-11-12 23:53:32,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371785056] [2021-11-12 23:53:32,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:53:32,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-11-12 23:53:32,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:53:32,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-11-12 23:53:32,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2208, Invalid=4764, Unknown=0, NotChecked=0, Total=6972 [2021-11-12 23:53:32,563 INFO L87 Difference]: Start difference. First operand 353 states and 393 transitions. Second operand has 78 states, 78 states have (on average 1.358974358974359) internal successors, (106), 78 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:40,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:53:40,664 INFO L93 Difference]: Finished difference Result 2603 states and 2990 transitions. [2021-11-12 23:53:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2021-11-12 23:53:40,665 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 1.358974358974359) internal successors, (106), 78 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2021-11-12 23:53:40,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:53:40,682 INFO L225 Difference]: With dead ends: 2603 [2021-11-12 23:53:40,682 INFO L226 Difference]: Without dead ends: 2509 [2021-11-12 23:53:40,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1081 GetRequests, 826 SyntacticMatches, 8 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26670 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=18447, Invalid=43305, Unknown=0, NotChecked=0, Total=61752 [2021-11-12 23:53:40,696 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 785 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1385.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.85ms SdHoareTripleChecker+Time, 972 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1905.46ms IncrementalHoareTripleChecker+Time [2021-11-12 23:53:40,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 892 Invalid, 2328 Unknown, 0 Unchecked, 13.85ms Time], IncrementalHoareTripleChecker [972 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1905.46ms Time] [2021-11-12 23:53:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2021-11-12 23:53:40,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 609. [2021-11-12 23:53:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 608 states have (on average 1.080592105263158) internal successors, (657), 608 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 657 transitions. [2021-11-12 23:53:40,810 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 657 transitions. Word has length 263 [2021-11-12 23:53:40,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:53:40,811 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 657 transitions. [2021-11-12 23:53:40,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 1.358974358974359) internal successors, (106), 78 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:40,811 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 657 transitions. [2021-11-12 23:53:40,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2021-11-12 23:53:40,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:53:40,823 INFO L514 BasicCegarLoop]: trace histogram [420, 60, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:53:40,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-12 23:53:41,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-11-12 23:53:41,039 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:53:41,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:53:41,039 INFO L85 PathProgramCache]: Analyzing trace with hash 342662627, now seen corresponding path program 7 times [2021-11-12 23:53:41,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:53:41,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471003019] [2021-11-12 23:53:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:53:41,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:53:41,072 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:53:41,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1932745526] [2021-11-12 23:53:41,072 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:53:41,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:53:41,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:53:41,073 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:53:41,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-12 23:53:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:53:41,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 2206 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-12 23:53:41,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:53:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 95960 backedges. 963 proven. 465 refuted. 0 times theorem prover too weak. 94532 trivial. 0 not checked. [2021-11-12 23:53:42,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:53:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 95960 backedges. 963 proven. 465 refuted. 0 times theorem prover too weak. 94532 trivial. 0 not checked. [2021-11-12 23:53:45,465 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:53:45,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471003019] [2021-11-12 23:53:45,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:45,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932745526] [2021-11-12 23:53:45,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932745526] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:53:45,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1613708762] [2021-11-12 23:53:45,468 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-12 23:53:45,468 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:53:45,469 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:53:45,469 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:53:45,469 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:53:45,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-12 23:53:45,476 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-12 23:53:45,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:45,481 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_20|], 36=[|v_#valid_35|]} [2021-11-12 23:53:45,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2021-11-12 23:53:45,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:45,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:53:45,508 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,512 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 38 [2021-11-12 23:53:45,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:45,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:53:45,541 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,544 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-12 23:53:45,548 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,548 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:165, output treesize:127 [2021-11-12 23:53:45,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-12 23:53:45,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,563 INFO L185 QuantifierPusher]: treesize reduction 4, result has 97.0 percent of original size 130 [2021-11-12 23:53:45,566 INFO L180 QuantifierPusher]: treesize reduction 4, result has 97.2 percent of original size [2021-11-12 23:53:45,568 INFO L185 QuantifierPusher]: treesize reduction 132, result has 0.8 percent of original size 1 [2021-11-12 23:53:45,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,574 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,575 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:53:45,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:53:45,577 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:45,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:53:45,579 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:45,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:45,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:53:45,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-11-12 23:53:45,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:53:45,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:53:45,597 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,602 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-12 23:53:45,608 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,608 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:166, output treesize:173 [2021-11-12 23:53:45,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-12 23:53:45,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,695 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,697 INFO L185 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size 28 [2021-11-12 23:53:45,699 INFO L185 QuantifierPusher]: treesize reduction 30, result has 77.4 percent of original size 103 [2021-11-12 23:53:45,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,703 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,704 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:45,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:45,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:45,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-12 23:53:45,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:45,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:45,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:45,728 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:45,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:45,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:45,737 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,778 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,784 INFO L180 QuantifierPusher]: treesize reduction 107, result has 59.5 percent of original size [2021-11-12 23:53:45,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-12 23:53:45,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:53:45,787 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:178 [2021-11-12 23:53:45,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,833 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:45,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:45,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:45,840 INFO L180 QuantifierPusher]: treesize reduction 48, result has 63.4 percent of original size [2021-11-12 23:53:45,842 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,842 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:53:45,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-12 23:53:45,844 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-12 23:53:45,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:53:45,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-12 23:53:45,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:45,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-12 23:53:45,853 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,855 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,857 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:53:45,858 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:53:45,858 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:80, output treesize:87 [2021-11-12 23:53:45,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,889 INFO L180 QuantifierPusher]: treesize reduction 49, result has 52.9 percent of original size [2021-11-12 23:53:45,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:45,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:45,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,955 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,963 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,975 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:45,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:45,981 INFO L185 QuantifierPusher]: treesize reduction 74, result has 47.5 percent of original size 67 [2021-11-12 23:53:45,988 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:53:45,996 INFO L185 QuantifierPusher]: treesize reduction 183, result has 49.6 percent of original size 180 [2021-11-12 23:53:46,005 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:53:46,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:46,010 INFO L185 QuantifierPusher]: treesize reduction 137, result has 22.6 percent of original size 40 [2021-11-12 23:53:46,013 INFO L185 QuantifierPusher]: treesize reduction 138, result has 27.7 percent of original size 53 [2021-11-12 23:53:46,017 INFO L180 QuantifierPusher]: treesize reduction 138, result has 30.3 percent of original size [2021-11-12 23:53:46,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-12 23:53:46,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:46,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-12 23:53:46,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,042 INFO L180 QuantifierPusher]: treesize reduction 54, result has 67.7 percent of original size [2021-11-12 23:53:46,046 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-11-12 23:53:46,050 INFO L180 QuantifierPusher]: treesize reduction 55, result has 50.0 percent of original size [2021-11-12 23:53:46,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:46,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,070 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:46,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:46,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:46,077 INFO L185 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-11-12 23:53:46,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:46,102 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.9 percent of original size 152 [2021-11-12 23:53:46,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,130 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:46,133 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:46,137 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.2 percent of original size [2021-11-12 23:53:46,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-12 23:53:46,142 INFO L180 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-11-12 23:53:46,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:53:46,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:46,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:46,153 INFO L180 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-11-12 23:53:46,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:53:46,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:53:46,159 INFO L185 QuantifierPusher]: treesize reduction 21, result has 77.2 percent of original size 71 [2021-11-12 23:53:46,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:53:46,176 INFO L180 QuantifierPusher]: treesize reduction 48, result has 70.7 percent of original size [2021-11-12 23:53:46,180 INFO L185 QuantifierPusher]: treesize reduction 19, result has 78.9 percent of original size 71 [2021-11-12 23:53:46,181 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:53:47,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:53:47,006 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:53:47,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 65 [2021-11-12 23:53:47,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062110687] [2021-11-12 23:53:47,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-12 23:53:47,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-12 23:53:47,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:53:47,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-12 23:53:47,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2304, Invalid=2808, Unknown=0, NotChecked=0, Total=5112 [2021-11-12 23:53:47,009 INFO L87 Difference]: Start difference. First operand 609 states and 657 transitions. Second operand has 66 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 65 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:51,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:53:51,690 INFO L93 Difference]: Finished difference Result 1916 states and 2526 transitions. [2021-11-12 23:53:51,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-12 23:53:51,692 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 65 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 519 [2021-11-12 23:53:51,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:53:51,700 INFO L225 Difference]: With dead ends: 1916 [2021-11-12 23:53:51,700 INFO L226 Difference]: Without dead ends: 1340 [2021-11-12 23:53:51,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1586 GetRequests, 1484 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2952 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=4443, Invalid=6063, Unknown=0, NotChecked=0, Total=10506 [2021-11-12 23:53:51,703 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 974 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 731.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.91ms SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1035.93ms IncrementalHoareTripleChecker+Time [2021-11-12 23:53:51,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 187 Invalid, 940 Unknown, 0 Unchecked, 6.91ms Time], IncrementalHoareTripleChecker [663 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 1035.93ms Time] [2021-11-12 23:53:51,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2021-11-12 23:53:51,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1217. [2021-11-12 23:53:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1216 states have (on average 1.066611842105263) internal successors, (1297), 1216 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1297 transitions. [2021-11-12 23:53:51,949 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1297 transitions. Word has length 519 [2021-11-12 23:53:51,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:53:51,949 INFO L470 AbstractCegarLoop]: Abstraction has 1217 states and 1297 transitions. [2021-11-12 23:53:51,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 65 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:53:51,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1297 transitions. [2021-11-12 23:53:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2021-11-12 23:53:51,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:53:51,992 INFO L514 BasicCegarLoop]: trace histogram [868, 124, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:53:52,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-12 23:53:52,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable542 [2021-11-12 23:53:52,211 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:53:52,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:53:52,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1685692899, now seen corresponding path program 8 times [2021-11-12 23:53:52,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:53:52,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509133744] [2021-11-12 23:53:52,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:53:52,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:53:52,283 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 23:53:52,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235778645] [2021-11-12 23:53:52,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:53:52,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:53:52,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:53:52,285 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:53:52,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab6f5c-ecf4-462d-86f8-620ec3022d84/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process