./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i --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_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/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_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/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_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/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 e683f6e2db40131b14c5db4c44cb0bc308464b8b58cfd5d36c28d692bcb3b448 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:07:39,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:07:39,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:07:39,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:07:39,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:07:39,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:07:39,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:07:39,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:07:39,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:07:39,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:07:39,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:07:39,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:07:39,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:07:39,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:07:39,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:07:39,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:07:39,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:07:39,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:07:39,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:07:39,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:07:39,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:07:39,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:07:39,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:07:39,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:07:39,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:07:39,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:07:39,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:07:39,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:07:39,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:07:39,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:07:39,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:07:39,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:07:39,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:07:39,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:07:39,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:07:39,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:07:39,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:07:39,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:07:39,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:07:39,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:07:39,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:07:39,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:07:39,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:07:39,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:07:39,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:07:39,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:07:39,337 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:07:39,337 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:07:39,337 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:07:39,338 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:07:39,345 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:07:39,346 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:07:39,347 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:07:39,347 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:07:39,348 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:07:39,348 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:07:39,348 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:07:39,348 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:07:39,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:07:39,350 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:07:39,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:07:39,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:07:39,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:07:39,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:07:39,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:07:39,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:07:39,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:07:39,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:07:39,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:07:39,352 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:07:39,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:07:39,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:07:39,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:07:39,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:07:39,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:07:39,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:07:39,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:07:39,356 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:07:39,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:07:39,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:07:39,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:07:39,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:07:39,358 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_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e683f6e2db40131b14c5db4c44cb0bc308464b8b58cfd5d36c28d692bcb3b448 [2021-11-12 23:07:39,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:07:39,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:07:39,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:07:39,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:07:39,726 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:07:39,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i [2021-11-12 23:07:39,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/data/a3cf7198b/b0e2b3b7c1b0451f812634db6fdecc19/FLAGd864614bf [2021-11-12 23:07:40,492 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:07:40,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i [2021-11-12 23:07:40,500 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/data/a3cf7198b/b0e2b3b7c1b0451f812634db6fdecc19/FLAGd864614bf [2021-11-12 23:07:40,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/data/a3cf7198b/b0e2b3b7c1b0451f812634db6fdecc19 [2021-11-12 23:07:40,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:07:40,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:07:40,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:07:40,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:07:40,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:07:40,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:07:40" (1/1) ... [2021-11-12 23:07:40,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2645020a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:40, skipping insertion in model container [2021-11-12 23:07:40,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:07:40" (1/1) ... [2021-11-12 23:07:40,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:07:40,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:07:41,085 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_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i[822,835] [2021-11-12 23:07:41,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:07:41,112 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:07:41,128 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_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/sv-benchmarks/c/array-lopstr16/partial_lesser_bound-1.i[822,835] [2021-11-12 23:07:41,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:07:41,150 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:07:41,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41 WrapperNode [2021-11-12 23:07:41,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:07:41,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:07:41,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:07:41,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:07:41,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:07:41,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:07:41,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:07:41,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:07:41,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:07:41,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:07:41,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:07:41,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:07:41,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (1/1) ... [2021-11-12 23:07:41,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:07:41,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:07:41,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:07:41,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:07:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:07:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:07:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:07:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:07:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:07:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:07:41,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:07:41,661 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-12 23:07:41,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:07:41 BoogieIcfgContainer [2021-11-12 23:07:41,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:07:41,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:07:41,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:07:41,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:07:41,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:07:40" (1/3) ... [2021-11-12 23:07:41,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc6fccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:07:41, skipping insertion in model container [2021-11-12 23:07:41,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:07:41" (2/3) ... [2021-11-12 23:07:41,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc6fccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:07:41, skipping insertion in model container [2021-11-12 23:07:41,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:07:41" (3/3) ... [2021-11-12 23:07:41,675 INFO L111 eAbstractionObserver]: Analyzing ICFG partial_lesser_bound-1.i [2021-11-12 23:07:41,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:07:41,682 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:07:41,739 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:07:41,747 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 23:07:41,748 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:07:41,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:41,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:07:41,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:41,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:07:41,772 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:41,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1596281938, now seen corresponding path program 1 times [2021-11-12 23:07:41,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:07:41,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802593077] [2021-11-12 23:07:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:41,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:07:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:42,082 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 23:07:42,083 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:07:42,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802593077] [2021-11-12 23:07:42,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802593077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:42,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:07:42,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:07:42,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447649408] [2021-11-12 23:07:42,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:42,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:07:42,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:07:42,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:07:42,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:07:42,156 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:42,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:42,204 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-11-12 23:07:42,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:07:42,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-12 23:07:42,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:42,217 INFO L225 Difference]: With dead ends: 23 [2021-11-12 23:07:42,217 INFO L226 Difference]: Without dead ends: 15 [2021-11-12 23:07:42,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:07:42,225 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.78ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:42,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 17 Unknown, 0 Unchecked, 0.78ms Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 27.38ms Time] [2021-11-12 23:07:42,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-12 23:07:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2021-11-12 23:07:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:42,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-11-12 23:07:42,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2021-11-12 23:07:42,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:42,295 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-12 23:07:42,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-11-12 23:07:42,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:07:42,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:42,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:42,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:07:42,298 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:42,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash -41052193, now seen corresponding path program 1 times [2021-11-12 23:07:42,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:07:42,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452372451] [2021-11-12 23:07:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:42,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:07:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:07:42,353 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:07:42,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452372451] [2021-11-12 23:07:42,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452372451] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:42,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098808775] [2021-11-12 23:07:42,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:42,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:42,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:07:42,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:07:42,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:07:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:42,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:07:42,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:07:42,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:42,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:07:42,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098808775] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:42,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1251282935] [2021-11-12 23:07:42,654 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 23:07:42,655 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:07:42,674 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:07:42,681 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:07:42,681 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:07:42,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:42,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:42,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:42,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:07:42,760 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:42,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:42,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:42,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:42,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:42,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:07:42,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:07:42,827 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-11-12 23:07:42,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:42,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:42,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:42,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:07:42,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:42,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:42,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:42,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:42,896 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:42,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:42,967 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:42,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:42,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:42,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:42,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:42,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:42,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:07:43,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:43,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:43,044 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-12 23:07:43,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:43,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:43,117 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-12 23:07:43,139 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,140 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:126, output treesize:100 [2021-11-12 23:07:43,147 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size [2021-11-12 23:07:43,151 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:43,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-12 23:07:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:07:43,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:43,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:43,188 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-11-12 23:07:43,228 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,228 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:110 [2021-11-12 23:07:43,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,359 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,367 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:43,371 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-12 23:07:43,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-12 23:07:43,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-12 23:07:43,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-11-12 23:07:43,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2021-11-12 23:07:43,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:43,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:43,462 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:07:43,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:43,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:43,491 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,519 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,534 INFO L180 QuantifierPusher]: treesize reduction 82, result has 74.8 percent of original size [2021-11-12 23:07:43,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-12 23:07:43,539 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:43,540 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:341, output treesize:243 [2021-11-12 23:07:43,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,598 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:43,601 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:43,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:43,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:43,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:43,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:43,612 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,614 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:43,617 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,617 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:43,622 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:43,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:43,627 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-11-12 23:07:43,629 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:07:43,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:07:43,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 23:07:43,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 23:07:43,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 23:07:43,639 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,642 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:07:43,644 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,644 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2021-11-12 23:07:43,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,686 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,689 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:43,693 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:07:43,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-11-12 23:07:43,699 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-12 23:07:43,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-12 23:07:43,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:43,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-12 23:07:43,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-12 23:07:43,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-12 23:07:43,743 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:43,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:43,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:43,761 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,776 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,781 INFO L180 QuantifierPusher]: treesize reduction 76, result has 55.3 percent of original size [2021-11-12 23:07:43,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-12 23:07:43,783 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:43,783 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:178, output treesize:94 [2021-11-12 23:07:43,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,833 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:43,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:43,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:43,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:43,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:43,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:43,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:43,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:43,856 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:43,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:43,858 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:43,859 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:43,864 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:43,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:43,871 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:07:44,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:07:44,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:07:44,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-12 23:07:44,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995142821] [2021-11-12 23:07:44,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:07:44,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:07:44,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:07:44,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:07:44,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=60, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:07:44,097 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:44,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:44,157 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2021-11-12 23:07:44,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:07:44,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 23:07:44,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:44,160 INFO L225 Difference]: With dead ends: 32 [2021-11-12 23:07:44,160 INFO L226 Difference]: Without dead ends: 25 [2021-11-12 23:07:44,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=60, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:07:44,164 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.79ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:44,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 9 Invalid, 36 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [18 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 40.79ms Time] [2021-11-12 23:07:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-12 23:07:44,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 14. [2021-11-12 23:07:44,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 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 23:07:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-12 23:07:44,175 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2021-11-12 23:07:44,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:44,175 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-12 23:07:44,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:44,175 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-12 23:07:44,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-12 23:07:44,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:44,177 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:44,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:44,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-12 23:07:44,392 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:44,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:44,392 INFO L85 PathProgramCache]: Analyzing trace with hash -123660114, now seen corresponding path program 2 times [2021-11-12 23:07:44,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:07:44,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771364034] [2021-11-12 23:07:44,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:44,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:07:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:44,479 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:07:44,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:07:44,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771364034] [2021-11-12 23:07:44,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771364034] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:44,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809444522] [2021-11-12 23:07:44,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:07:44,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:44,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:07:44,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:07:44,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:07:44,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-12 23:07:44,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:07:44,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:07:44,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:44,575 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-12 23:07:44,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:44,632 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-12 23:07:44,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809444522] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:44,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [145273447] [2021-11-12 23:07:44,639 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 23:07:44,639 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:07:44,639 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:07:44,640 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:07:44,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:07:44,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,652 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:44,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:44,654 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:44,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:07:44,657 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:44,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:07:44,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:07:44,671 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_10|], 21=[|v_#valid_11|]} [2021-11-12 23:07:44,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:07:44,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:44,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:44,690 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:44,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:44,696 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:07:44,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:44,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:44,731 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:44,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:44,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-12 23:07:44,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:44,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:44,765 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:44,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:44,770 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-12 23:07:44,778 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:44,778 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:126, output treesize:100 [2021-11-12 23:07:44,784 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size [2021-11-12 23:07:44,789 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:44,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:07:44,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-12 23:07:44,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-11-12 23:07:44,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:07:44,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:07:44,810 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:44,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:44,815 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-11-12 23:07:44,823 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:44,824 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:103 [2021-11-12 23:07:44,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:44,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:44,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:44,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,910 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:44,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:44,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:44,923 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:44,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:07:44,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-12 23:07:44,932 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:44,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-12 23:07:44,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-11-12 23:07:44,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:07:44,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:44,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:44,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:44,984 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:44,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:44,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2021-11-12 23:07:44,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:07:45,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:07:45,002 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,025 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,053 INFO L180 QuantifierPusher]: treesize reduction 82, result has 74.4 percent of original size [2021-11-12 23:07:45,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-12 23:07:45,059 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:45,060 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:336, output treesize:238 [2021-11-12 23:07:45,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,117 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:45,121 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:45,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:45,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:45,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:45,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:45,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:45,133 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,135 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:45,138 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,138 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:45,143 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:45,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:45,149 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-11-12 23:07:45,152 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:45,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:07:45,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:07:45,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 23:07:45,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 23:07:45,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 23:07:45,163 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:07:45,168 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,169 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2021-11-12 23:07:45,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,210 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:45,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,212 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:45,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:45,214 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:45,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:07:45,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-11-12 23:07:45,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:45,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-12 23:07:45,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-12 23:07:45,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:45,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:45,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:45,234 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:45,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-12 23:07:45,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-12 23:07:45,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-12 23:07:45,253 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,273 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,277 INFO L180 QuantifierPusher]: treesize reduction 76, result has 55.3 percent of original size [2021-11-12 23:07:45,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-12 23:07:45,279 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:45,280 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:178, output treesize:94 [2021-11-12 23:07:45,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,308 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:45,312 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:45,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:45,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:45,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:45,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:45,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:45,323 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:45,325 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,326 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:45,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:45,328 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:45,329 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:45,335 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:45,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:45,342 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:07:45,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:07:45,555 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:07:45,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-11-12 23:07:45,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655631141] [2021-11-12 23:07:45,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:07:45,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:07:45,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:07:45,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:07:45,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=114, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:07:45,557 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:45,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:45,665 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2021-11-12 23:07:45,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:07:45,665 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-12 23:07:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:45,666 INFO L225 Difference]: With dead ends: 68 [2021-11-12 23:07:45,667 INFO L226 Difference]: Without dead ends: 60 [2021-11-12 23:07:45,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=114, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:07:45,668 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 56 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.96ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:45,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 27 Invalid, 84 Unknown, 0 Unchecked, 2.96ms Time], IncrementalHoareTripleChecker [42 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 84.66ms Time] [2021-11-12 23:07:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-12 23:07:45,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 24. [2021-11-12 23:07:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 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 23:07:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2021-11-12 23:07:45,679 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 12 [2021-11-12 23:07:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:45,679 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-11-12 23:07:45,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:45,679 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2021-11-12 23:07:45,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 23:07:45,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:45,680 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:45,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:45,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:45,900 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:45,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:45,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1814446382, now seen corresponding path program 3 times [2021-11-12 23:07:45,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:07:45,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967797014] [2021-11-12 23:07:45,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:45,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:07:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-12 23:07:46,035 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:07:46,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967797014] [2021-11-12 23:07:46,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967797014] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:46,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833905622] [2021-11-12 23:07:46,036 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:07:46,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:46,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:07:46,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:07:46,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:07:46,099 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:07:46,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:07:46,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:07:46,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:46,167 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-12 23:07:46,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:46,396 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-12 23:07:46,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833905622] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:46,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2132407869] [2021-11-12 23:07:46,399 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 23:07:46,400 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:07:46,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:07:46,400 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:07:46,400 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:07:46,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,409 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,412 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:07:46,414 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,417 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:07:46,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:07:46,423 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_11|], 21=[|v_#valid_12|]} [2021-11-12 23:07:46,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:07:46,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:46,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:46,439 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:07:46,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:46,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:46,473 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-12 23:07:46,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:46,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:46,491 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-12 23:07:46,501 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,501 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:126, output treesize:100 [2021-11-12 23:07:46,509 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size [2021-11-12 23:07:46,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:46,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-12 23:07:46,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:07:46,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:46,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:46,542 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,547 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-11-12 23:07:46,552 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,552 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:110 [2021-11-12 23:07:46,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,607 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,611 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-12 23:07:46,614 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,618 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:46,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-12 23:07:46,622 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-12 23:07:46,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-11-12 23:07:46,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2021-11-12 23:07:46,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:46,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:46,654 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:07:46,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:46,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:46,670 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,689 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,697 INFO L180 QuantifierPusher]: treesize reduction 82, result has 74.8 percent of original size [2021-11-12 23:07:46,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-12 23:07:46,701 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:46,701 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:341, output treesize:243 [2021-11-12 23:07:46,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,743 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:46,744 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:46,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:46,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:46,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,754 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,756 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:46,758 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,759 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:46,763 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:46,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:46,767 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-11-12 23:07:46,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:46,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:07:46,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:46,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,779 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,781 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:07:46,789 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,789 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2021-11-12 23:07:46,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,813 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:07:46,817 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:46,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:07:46,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-12 23:07:46,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-12 23:07:46,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:46,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-12 23:07:46,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:07:46,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:07:46,840 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:46,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,849 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,863 INFO L180 QuantifierPusher]: treesize reduction 76, result has 56.6 percent of original size [2021-11-12 23:07:46,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-12 23:07:46,865 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:46,865 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:183, output treesize:99 [2021-11-12 23:07:46,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,890 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:46,892 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:46,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:46,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:46,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:46,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:46,903 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:46,906 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:46,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:46,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:46,908 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:46,912 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:46,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:46,922 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:07:47,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:07:47,127 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:07:47,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2021-11-12 23:07:47,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551246409] [2021-11-12 23:07:47,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:07:47,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 23:07:47,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:07:47,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 23:07:47,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=319, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:07:47,130 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:47,285 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2021-11-12 23:07:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 23:07:47,286 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-12 23:07:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:47,288 INFO L225 Difference]: With dead ends: 95 [2021-11-12 23:07:47,288 INFO L226 Difference]: Without dead ends: 81 [2021-11-12 23:07:47,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=281, Invalid=319, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:07:47,290 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 128 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.10ms SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.82ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:47,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 33 Invalid, 141 Unknown, 0 Unchecked, 3.10ms Time], IncrementalHoareTripleChecker [84 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 111.82ms Time] [2021-11-12 23:07:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-12 23:07:47,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 35. [2021-11-12 23:07:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-12 23:07:47,302 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2021-11-12 23:07:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:47,302 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-12 23:07:47,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-12 23:07:47,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-12 23:07:47,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:47,304 INFO L514 BasicCegarLoop]: trace histogram [18, 9, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:47,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:47,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:47,523 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:47,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:47,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1375895420, now seen corresponding path program 4 times [2021-11-12 23:07:47,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:07:47,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960556165] [2021-11-12 23:07:47,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:47,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:07:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-12 23:07:47,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:07:47,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960556165] [2021-11-12 23:07:47,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960556165] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:47,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309352053] [2021-11-12 23:07:47,970 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:07:47,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:47,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:07:47,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:07:48,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 23:07:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:48,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 23:07:48,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-12 23:07:48,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-12 23:07:48,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309352053] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:48,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1162053208] [2021-11-12 23:07:48,857 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 23:07:48,857 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:07:48,857 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:07:48,857 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:07:48,857 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:07:48,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,864 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:48,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:48,870 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:48,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:07:48,872 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:48,873 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:07:48,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:07:48,878 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_12|], 21=[|v_#valid_13|]} [2021-11-12 23:07:48,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:07:48,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:48,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:48,894 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:48,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:48,899 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:07:48,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:48,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:48,930 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:48,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:48,934 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-12 23:07:48,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:48,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:48,945 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:48,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:48,949 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-12 23:07:48,952 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:48,952 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:126, output treesize:100 [2021-11-12 23:07:48,955 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size [2021-11-12 23:07:48,957 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:48,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:07:48,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-12 23:07:48,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:48,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-11-12 23:07:48,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:07:48,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-12 23:07:48,974 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:48,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:48,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:48,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-11-12 23:07:48,981 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:48,981 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:103 [2021-11-12 23:07:48,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:48,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,023 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-12 23:07:49,029 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:49,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-12 23:07:49,033 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-12 23:07:49,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-11-12 23:07:49,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:49,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:07:49,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:49,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:49,062 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:49,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2021-11-12 23:07:49,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:07:49,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:07:49,076 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,094 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,101 INFO L180 QuantifierPusher]: treesize reduction 82, result has 74.4 percent of original size [2021-11-12 23:07:49,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-12 23:07:49,105 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:49,105 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:336, output treesize:238 [2021-11-12 23:07:49,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,147 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:49,149 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:49,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:49,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:49,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:49,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:49,159 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,161 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:49,163 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,163 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:49,166 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:49,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:49,171 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-11-12 23:07:49,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:49,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:07:49,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:49,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:49,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:49,182 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,184 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:07:49,186 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,186 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2021-11-12 23:07:49,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,205 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,209 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,209 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:07:49,210 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:49,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:07:49,213 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-12 23:07:49,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-12 23:07:49,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:49,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-12 23:07:49,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:07:49,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:07:49,231 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:49,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:49,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:49,239 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,247 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,251 INFO L180 QuantifierPusher]: treesize reduction 76, result has 56.6 percent of original size [2021-11-12 23:07:49,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-12 23:07:49,253 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:49,253 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:183, output treesize:99 [2021-11-12 23:07:49,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,274 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:49,275 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:49,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:49,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:49,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:49,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:49,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:49,285 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:49,287 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:49,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:49,289 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:49,289 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:49,293 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:49,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:49,299 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:07:49,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:07:49,497 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:07:49,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2021-11-12 23:07:49,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637793034] [2021-11-12 23:07:49,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:07:49,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-12 23:07:49,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:07:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-12 23:07:49,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=951, Invalid=1029, Unknown=0, NotChecked=0, Total=1980 [2021-11-12 23:07:49,501 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 41 states, 41 states have (on average 1.146341463414634) internal successors, (47), 40 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:49,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:49,890 INFO L93 Difference]: Finished difference Result 176 states and 209 transitions. [2021-11-12 23:07:49,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-12 23:07:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.146341463414634) internal successors, (47), 40 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-12 23:07:49,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:49,893 INFO L225 Difference]: With dead ends: 176 [2021-11-12 23:07:49,893 INFO L226 Difference]: Without dead ends: 161 [2021-11-12 23:07:49,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=951, Invalid=1029, Unknown=0, NotChecked=0, Total=1980 [2021-11-12 23:07:49,895 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 365 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.25ms SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 205.77ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:49,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 60 Invalid, 330 Unknown, 0 Unchecked, 4.25ms Time], IncrementalHoareTripleChecker [227 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 205.77ms Time] [2021-11-12 23:07:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-12 23:07:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 65. [2021-11-12 23:07:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 0 states have call successors, (0), 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 23:07:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2021-11-12 23:07:49,907 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 33 [2021-11-12 23:07:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:49,908 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2021-11-12 23:07:49,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.146341463414634) internal successors, (47), 40 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:07:49,908 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2021-11-12 23:07:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 23:07:49,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:49,910 INFO L514 BasicCegarLoop]: trace histogram [38, 19, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:49,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:50,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:50,125 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:50,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash 252327548, now seen corresponding path program 5 times [2021-11-12 23:07:50,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:07:50,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386865345] [2021-11-12 23:07:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:50,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:07:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-12 23:07:50,992 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:07:50,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386865345] [2021-11-12 23:07:50,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386865345] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:50,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218868635] [2021-11-12 23:07:50,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:07:50,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:50,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:07:50,993 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:07:51,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:07:54,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-11-12 23:07:54,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:07:54,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:07:54,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:07:54,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-11-12 23:07:55,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218868635] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:55,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1707441125] [2021-11-12 23:07:55,727 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 23:07:55,727 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:07:55,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:07:55,728 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:07:55,728 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:07:55,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,750 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:55,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:07:55,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:55,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:07:55,753 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:55,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:55,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:07:55,758 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_14|]} [2021-11-12 23:07:55,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:07:55,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:55,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:55,770 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:55,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:07:55,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:55,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:07:55,796 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:55,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,800 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-12 23:07:55,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:55,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:07:55,811 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:55,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,815 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-12 23:07:55,818 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:55,818 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:126, output treesize:100 [2021-11-12 23:07:55,821 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size [2021-11-12 23:07:55,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:55,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:55,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-12 23:07:55,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:07:55,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:55,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:55,838 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:55,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,842 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-11-12 23:07:55,845 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:55,845 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:110 [2021-11-12 23:07:55,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,888 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:55,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:55,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-12 23:07:55,893 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:55,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:55,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-12 23:07:55,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:55,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-12 23:07:55,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-11-12 23:07:55,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:07:55,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:55,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:55,922 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:55,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:55,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2021-11-12 23:07:55,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:55,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:07:55,936 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:55,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,952 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:55,959 INFO L180 QuantifierPusher]: treesize reduction 82, result has 74.8 percent of original size [2021-11-12 23:07:55,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-12 23:07:55,963 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:55,963 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:341, output treesize:243 [2021-11-12 23:07:55,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:55,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,007 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:56,008 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:56,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:56,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:56,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:56,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:56,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:56,017 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:56,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,019 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:56,021 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:56,021 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:56,024 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:56,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:56,027 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-11-12 23:07:56,029 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:56,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:56,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-12 23:07:56,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:56,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:56,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:56,037 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:56,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,039 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-12 23:07:56,041 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:56,041 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2021-11-12 23:07:56,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:56,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,060 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:56,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:56,062 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:56,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-12 23:07:56,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-12 23:07:56,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:56,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-12 23:07:56,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-12 23:07:56,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:07:56,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-12 23:07:56,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:07:56,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-12 23:07:56,082 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:56,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:56,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:56,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:56,090 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:56,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,097 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,100 INFO L180 QuantifierPusher]: treesize reduction 76, result has 56.6 percent of original size [2021-11-12 23:07:56,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-12 23:07:56,102 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:07:56,102 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:183, output treesize:99 [2021-11-12 23:07:56,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,120 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:07:56,122 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:07:56,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:07:56,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:07:56,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:07:56,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:56,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:07:56,130 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:07:56,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:07:56,133 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:07:56,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:07:56,134 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:07:56,135 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:07:56,138 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:07:56,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:07:56,149 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:07:56,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:07:56,337 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:07:56,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 22, 22] total 62 [2021-11-12 23:07:56,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855834689] [2021-11-12 23:07:56,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:07:56,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-12 23:07:56,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:07:56,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-12 23:07:56,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2085, Invalid=2205, Unknown=0, NotChecked=0, Total=4290 [2021-11-12 23:07:56,343 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand has 62 states, 62 states have (on average 1.435483870967742) internal successors, (89), 62 states have internal predecessors, (89), 0 states have call successors, (0), 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 23:07:57,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:57,325 INFO L93 Difference]: Finished difference Result 442 states and 506 transitions. [2021-11-12 23:07:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-12 23:07:57,326 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 1.435483870967742) internal successors, (89), 62 states have internal predecessors, (89), 0 states have call successors, (0), 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 63 [2021-11-12 23:07:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:57,330 INFO L225 Difference]: With dead ends: 442 [2021-11-12 23:07:57,330 INFO L226 Difference]: Without dead ends: 417 [2021-11-12 23:07:57,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2085, Invalid=2205, Unknown=0, NotChecked=0, Total=4290 [2021-11-12 23:07:57,334 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 852 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 331.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.11ms SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 439.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:57,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 180 Invalid, 764 Unknown, 0 Unchecked, 9.11ms Time], IncrementalHoareTripleChecker [518 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 439.39ms Time] [2021-11-12 23:07:57,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-11-12 23:07:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 126. [2021-11-12 23:07:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.024) internal successors, (128), 125 states have internal predecessors, (128), 0 states have call successors, (0), 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 23:07:57,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 128 transitions. [2021-11-12 23:07:57,355 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 128 transitions. Word has length 63 [2021-11-12 23:07:57,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:57,356 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 128 transitions. [2021-11-12 23:07:57,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 1.435483870967742) internal successors, (89), 62 states have internal predecessors, (89), 0 states have call successors, (0), 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 23:07:57,357 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 128 transitions. [2021-11-12 23:07:57,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-12 23:07:57,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:57,362 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:57,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:57,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:57,563 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:07:57,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:57,564 INFO L85 PathProgramCache]: Analyzing trace with hash -921134977, now seen corresponding path program 6 times [2021-11-12 23:07:57,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:07:57,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293480302] [2021-11-12 23:07:57,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:07:57,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:07:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:07:59,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2021-11-12 23:07:59,384 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:07:59,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293480302] [2021-11-12 23:07:59,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293480302] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:07:59,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128172451] [2021-11-12 23:07:59,384 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:07:59,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:59,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:07:59,386 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:07:59,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 23:07:59,509 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:07:59,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:07:59,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-12 23:07:59,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2021-11-12 23:07:59,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2021-11-12 23:08:03,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128172451] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:08:03,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1602720723] [2021-11-12 23:08:03,727 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 23:08:03,727 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:08:03,728 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:08:03,728 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:08:03,728 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:08:03,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,752 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:03,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:08:03,753 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:03,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:08:03,755 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:03,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:03,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:08:03,759 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 21=[|v_#valid_15|]} [2021-11-12 23:08:03,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:08:03,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:03,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:03,772 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:03,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:03,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:08:03,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:08:03,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:08:03,797 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:03,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:03,801 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-12 23:08:03,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:08:03,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:08:03,812 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:03,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:03,815 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-12 23:08:03,818 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:03,819 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:126, output treesize:100 [2021-11-12 23:08:03,822 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size [2021-11-12 23:08:03,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:03,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:08:03,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-12 23:08:03,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:08:03,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:03,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:03,838 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:03,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:03,841 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-11-12 23:08:03,845 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:03,845 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:110 [2021-11-12 23:08:03,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:03,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:03,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:03,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,886 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:03,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,889 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:03,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:08:03,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:03,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-12 23:08:03,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-12 23:08:03,895 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:03,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-12 23:08:03,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-11-12 23:08:03,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:08:03,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:03,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:03,920 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:03,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:03,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2021-11-12 23:08:03,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:08:03,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:08:03,933 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:03,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:03,966 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:03,977 INFO L180 QuantifierPusher]: treesize reduction 82, result has 74.8 percent of original size [2021-11-12 23:08:03,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-12 23:08:03,981 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:08:03,981 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:341, output treesize:243 [2021-11-12 23:08:03,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,024 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:08:04,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:04,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:04,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:08:04,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:08:04,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:04,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:04,037 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:04,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,038 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:08:04,040 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:04,040 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:08:04,044 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:08:04,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:04,047 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-11-12 23:08:04,048 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:04,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:08:04,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:08:04,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 23:08:04,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 23:08:04,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 23:08:04,058 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:04,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:08:04,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:04,061 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2021-11-12 23:08:04,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,078 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:04,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,080 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:04,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:04,081 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:04,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:08:04,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-11-12 23:08:04,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:04,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-12 23:08:04,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-12 23:08:04,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:04,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-12 23:08:04,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-12 23:08:04,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-12 23:08:04,101 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:04,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:08:04,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:04,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:04,110 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:04,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,136 INFO L180 QuantifierPusher]: treesize reduction 76, result has 55.3 percent of original size [2021-11-12 23:08:04,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-12 23:08:04,138 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:08:04,138 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:178, output treesize:94 [2021-11-12 23:08:04,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,174 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:08:04,178 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:04,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:04,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:08:04,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:08:04,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:04,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:04,187 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:04,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:04,189 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:04,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:08:04,191 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:04,191 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:08:04,194 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:08:04,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:04,199 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:08:04,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:08:04,421 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:08:04,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 122 [2021-11-12 23:08:04,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988068369] [2021-11-12 23:08:04,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:08:04,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2021-11-12 23:08:04,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:08:04,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2021-11-12 23:08:04,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7880, Invalid=8122, Unknown=0, NotChecked=0, Total=16002 [2021-11-12 23:08:04,434 INFO L87 Difference]: Start difference. First operand 126 states and 128 transitions. Second operand has 123 states, 123 states have (on average 1.048780487804878) internal successors, (129), 122 states have internal predecessors, (129), 0 states have call successors, (0), 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 23:08:08,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:08:08,101 INFO L93 Difference]: Finished difference Result 554 states and 619 transitions. [2021-11-12 23:08:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-11-12 23:08:08,101 INFO L78 Accepts]: Start accepts. Automaton has has 123 states, 123 states have (on average 1.048780487804878) internal successors, (129), 122 states have internal predecessors, (129), 0 states have call successors, (0), 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 124 [2021-11-12 23:08:08,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:08:08,104 INFO L225 Difference]: With dead ends: 554 [2021-11-12 23:08:08,104 INFO L226 Difference]: Without dead ends: 489 [2021-11-12 23:08:08,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=7880, Invalid=8122, Unknown=0, NotChecked=0, Total=16002 [2021-11-12 23:08:08,110 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 1223 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 417.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.38ms SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 568.73ms IncrementalHoareTripleChecker+Time [2021-11-12 23:08:08,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1223 Valid, 183 Invalid, 993 Unknown, 0 Unchecked, 15.38ms Time], IncrementalHoareTripleChecker [685 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 568.73ms Time] [2021-11-12 23:08:08,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2021-11-12 23:08:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 188. [2021-11-12 23:08:08,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.0160427807486632) internal successors, (190), 187 states have internal predecessors, (190), 0 states have call successors, (0), 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 23:08:08,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 190 transitions. [2021-11-12 23:08:08,134 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 190 transitions. Word has length 124 [2021-11-12 23:08:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:08:08,135 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 190 transitions. [2021-11-12 23:08:08,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 123 states have (on average 1.048780487804878) internal successors, (129), 122 states have internal predecessors, (129), 0 states have call successors, (0), 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 23:08:08,135 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 190 transitions. [2021-11-12 23:08:08,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-12 23:08:08,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:08:08,139 INFO L514 BasicCegarLoop]: trace histogram [120, 60, 1, 1, 1, 1, 1, 1] [2021-11-12 23:08:08,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:08:08,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable148 [2021-11-12 23:08:08,340 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:08:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:08:08,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1007116718, now seen corresponding path program 7 times [2021-11-12 23:08:08,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:08:08,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631322290] [2021-11-12 23:08:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:08:08,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:08:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9090 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 1830 trivial. 0 not checked. [2021-11-12 23:08:13,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:08:13,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631322290] [2021-11-12 23:08:13,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631322290] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:08:13,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645497154] [2021-11-12 23:08:13,572 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:08:13,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:08:13,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:08:13,573 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:08:13,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:08:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:08:13,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 122 conjunts are in the unsatisfiable core [2021-11-12 23:08:13,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:08:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 9090 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 1830 trivial. 0 not checked. [2021-11-12 23:08:14,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:08:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 9090 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 1830 trivial. 0 not checked. [2021-11-12 23:08:29,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645497154] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:08:29,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1408134291] [2021-11-12 23:08:29,534 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-12 23:08:29,534 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:08:29,534 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:08:29,535 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:08:29,535 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:08:29,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,547 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:29,548 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:08:29,557 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,557 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:08:29,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-12 23:08:29,561 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 21=[|v_#valid_16|]} [2021-11-12 23:08:29,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:08:29,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:29,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:29,581 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:08:29,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:08:29,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:08:29,604 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2021-11-12 23:08:29,615 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:08:29,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-12 23:08:29,617 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,620 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-12 23:08:29,623 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,623 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:126, output treesize:100 [2021-11-12 23:08:29,625 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size [2021-11-12 23:08:29,627 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:08:29,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-12 23:08:29,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:08:29,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:29,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:29,640 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,643 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-11-12 23:08:29,646 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,646 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:110 [2021-11-12 23:08:29,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,688 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,692 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:08:29,693 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-12 23:08:29,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-12 23:08:29,698 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-12 23:08:29,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 280 [2021-11-12 23:08:29,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-12 23:08:29,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:29,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:29,725 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2021-11-12 23:08:29,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:08:29,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-12 23:08:29,738 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,757 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,763 INFO L180 QuantifierPusher]: treesize reduction 82, result has 74.8 percent of original size [2021-11-12 23:08:29,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-12 23:08:29,767 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:08:29,767 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:341, output treesize:243 [2021-11-12 23:08:29,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,809 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:08:29,810 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:29,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:08:29,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:08:29,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:29,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:29,818 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,819 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:08:29,821 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,821 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:08:29,825 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:08:29,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:29,828 INFO L180 QuantifierPusher]: treesize reduction 3, result has 94.5 percent of original size [2021-11-12 23:08:29,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:08:29,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-12 23:08:29,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-12 23:08:29,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 23:08:29,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-12 23:08:29,836 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-12 23:08:29,840 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,840 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2021-11-12 23:08:29,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,858 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,859 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:29,860 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-12 23:08:29,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-11-12 23:08:29,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-12 23:08:29,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-12 23:08:29,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:08:29,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-12 23:08:29,877 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-12 23:08:29,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-12 23:08:29,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:08:29,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:29,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:29,887 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,895 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,898 INFO L180 QuantifierPusher]: treesize reduction 76, result has 55.3 percent of original size [2021-11-12 23:08:29,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-12 23:08:29,899 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-12 23:08:29,900 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:178, output treesize:94 [2021-11-12 23:08:29,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,921 INFO L180 QuantifierPusher]: treesize reduction 30, result has 64.7 percent of original size [2021-11-12 23:08:29,923 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:08:29,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:08:29,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-12 23:08:29,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-12 23:08:29,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:29,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:08:29,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:08:29,937 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:08:29,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-12 23:08:29,939 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:08:29,939 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:46 [2021-11-12 23:08:29,942 INFO L180 QuantifierPusher]: treesize reduction 34, result has 50.7 percent of original size [2021-11-12 23:08:29,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-12 23:08:29,948 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:08:30,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:08:30,250 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:08:30,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 122, 122] total 244 [2021-11-12 23:08:30,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791860671] [2021-11-12 23:08:30,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:08:30,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 245 states [2021-11-12 23:08:30,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:08:30,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 245 interpolants. [2021-11-12 23:08:30,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30633, Invalid=31119, Unknown=0, NotChecked=0, Total=61752 [2021-11-12 23:08:30,273 INFO L87 Difference]: Start difference. First operand 188 states and 190 transitions. Second operand has 245 states, 245 states have (on average 1.0244897959183674) internal successors, (251), 244 states have internal predecessors, (251), 0 states have call successors, (0), 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 23:09:10,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:10,346 INFO L93 Difference]: Finished difference Result 1043 states and 1229 transitions. [2021-11-12 23:09:10,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2021-11-12 23:09:10,347 INFO L78 Accepts]: Start accepts. Automaton has has 245 states, 245 states have (on average 1.0244897959183674) internal successors, (251), 244 states have internal predecessors, (251), 0 states have call successors, (0), 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 186 [2021-11-12 23:09:10,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:10,353 INFO L225 Difference]: With dead ends: 1043 [2021-11-12 23:09:10,354 INFO L226 Difference]: Without dead ends: 977 [2021-11-12 23:09:10,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2296 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=30633, Invalid=31119, Unknown=0, NotChecked=0, Total=61752 [2021-11-12 23:09:10,362 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 2340 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 889.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2340 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.97ms SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1227.71ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:10,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2340 Valid, 366 Invalid, 1977 Unknown, 0 Unchecked, 33.97ms Time], IncrementalHoareTripleChecker [1364 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 1227.71ms Time] [2021-11-12 23:09:10,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-11-12 23:09:10,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 371. [2021-11-12 23:09:10,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.008108108108108) internal successors, (373), 370 states have internal predecessors, (373), 0 states have call successors, (0), 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 23:09:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 373 transitions. [2021-11-12 23:09:10,400 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 373 transitions. Word has length 186 [2021-11-12 23:09:10,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:10,401 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 373 transitions. [2021-11-12 23:09:10,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 245 states, 245 states have (on average 1.0244897959183674) internal successors, (251), 244 states have internal predecessors, (251), 0 states have call successors, (0), 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 23:09:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 373 transitions. [2021-11-12 23:09:10,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2021-11-12 23:09:10,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:10,411 INFO L514 BasicCegarLoop]: trace histogram [242, 121, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:10,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:10,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable178 [2021-11-12 23:09:10,626 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:10,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:10,627 INFO L85 PathProgramCache]: Analyzing trace with hash -542464132, now seen corresponding path program 8 times [2021-11-12 23:09:10,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:10,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672933369] [2021-11-12 23:09:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:10,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 36784 backedges. 0 proven. 29403 refuted. 0 times theorem prover too weak. 7381 trivial. 0 not checked. [2021-11-12 23:09:31,757 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:31,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672933369] [2021-11-12 23:09:31,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672933369] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:31,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098001243] [2021-11-12 23:09:31,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:09:31,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:31,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:31,761 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:31,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0d17c4c-57f8-4c0f-bd83-b8e3274498de/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process