./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P --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 3db5e6ee1090a5741e563a010c3676d5357df7fec89fabe5a888b2d307357a0e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:45:32,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:45:32,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:45:32,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:45:32,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:45:32,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:45:32,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:45:32,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:45:32,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:45:32,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:45:32,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:45:32,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:45:32,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:45:32,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:45:32,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:45:32,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:45:32,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:45:32,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:45:32,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:45:32,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:45:32,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:45:32,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:45:32,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:45:32,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:45:32,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:45:32,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:45:32,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:45:32,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:45:32,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:45:32,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:45:32,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:45:32,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:45:32,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:45:32,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:45:32,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:45:32,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:45:32,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:45:32,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:45:32,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:45:32,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:45:32,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:45:32,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:45:32,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:45:32,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:45:32,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:45:32,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:45:32,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:45:32,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:45:32,335 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:45:32,336 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:45:32,336 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:45:32,336 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:45:32,337 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:45:32,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:45:32,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:45:32,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:45:32,338 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:45:32,338 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:45:32,339 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:45:32,339 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:45:32,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:45:32,340 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:45:32,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:45:32,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:45:32,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:45:32,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:45:32,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:45:32,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:45:32,343 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:45:32,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:45:32,343 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:45:32,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:45:32,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:45:32,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:45:32,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:45:32,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:45:32,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:45:32,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:45:32,346 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:45:32,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:45:32,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:45:32,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:45:32,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:45:32,347 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_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db5e6ee1090a5741e563a010c3676d5357df7fec89fabe5a888b2d307357a0e [2021-11-21 01:45:32,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:45:32,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:45:32,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:45:32,661 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:45:32,662 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:45:32,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i [2021-11-21 01:45:32,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/data/0708ca351/a84d1077170f431bbb0c4ca5584f0d55/FLAGb6350154c [2021-11-21 01:45:33,390 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:45:33,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i [2021-11-21 01:45:33,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/data/0708ca351/a84d1077170f431bbb0c4ca5584f0d55/FLAGb6350154c [2021-11-21 01:45:33,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/data/0708ca351/a84d1077170f431bbb0c4ca5584f0d55 [2021-11-21 01:45:33,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:45:33,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:45:33,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:45:33,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:45:33,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:45:33,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:33" (1/1) ... [2021-11-21 01:45:33,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33be3923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:33, skipping insertion in model container [2021-11-21 01:45:33,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:33" (1/1) ... [2021-11-21 01:45:33,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:45:33,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:45:34,198 WARN L230 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_efcb0c5d-411e-41b7-a724-e6897c71adf2/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-11-21 01:45:34,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:45:34,442 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:45:34,484 WARN L230 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_efcb0c5d-411e-41b7-a724-e6897c71adf2/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-11-21 01:45:34,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:45:34,733 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:45:34,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34 WrapperNode [2021-11-21 01:45:34,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:45:34,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:45:34,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:45:34,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:45:34,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:34,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:34,921 INFO L137 Inliner]: procedures = 177, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2330 [2021-11-21 01:45:34,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:45:34,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:45:34,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:45:34,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:45:34,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:34,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:34,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:34,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:35,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:35,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:35,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:35,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:45:35,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:45:35,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:45:35,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:45:35,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (1/1) ... [2021-11-21 01:45:35,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:45:35,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:35,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:45:35,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:45:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-21 01:45:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-21 01:45:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:45:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:45:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:45:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:45:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:45:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:45:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:45:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:45:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:45:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:45:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:45:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:45:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:45:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:45:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:45:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:45:35,649 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:45:35,651 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:45:37,555 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:45:38,401 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:45:38,401 INFO L301 CfgBuilder]: Removed 160 assume(true) statements. [2021-11-21 01:45:38,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:38 BoogieIcfgContainer [2021-11-21 01:45:38,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:45:38,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:45:38,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:45:38,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:45:38,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:45:33" (1/3) ... [2021-11-21 01:45:38,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcffb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:38, skipping insertion in model container [2021-11-21 01:45:38,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:34" (2/3) ... [2021-11-21 01:45:38,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcffb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:38, skipping insertion in model container [2021-11-21 01:45:38,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:38" (3/3) ... [2021-11-21 01:45:38,415 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test10-2.i [2021-11-21 01:45:38,422 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:45:38,422 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:45:38,490 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:45:38,506 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 [2021-11-21 01:45:38,506 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:45:38,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:45:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 01:45:38,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:38,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:38,547 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:38,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:38,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1013260908, now seen corresponding path program 1 times [2021-11-21 01:45:38,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:38,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512154265] [2021-11-21 01:45:38,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:38,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:45:38,756 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:38,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512154265] [2021-11-21 01:45:38,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512154265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:38,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:38,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:45:38,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392851545] [2021-11-21 01:45:38,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:38,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:45:38,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:38,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:45:38,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:45:38,794 INFO L87 Difference]: Start difference. First operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:40,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:40,156 INFO L93 Difference]: Finished difference Result 529 states and 961 transitions. [2021-11-21 01:45:40,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:45:40,160 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-21 01:45:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:40,178 INFO L225 Difference]: With dead ends: 529 [2021-11-21 01:45:40,178 INFO L226 Difference]: Without dead ends: 249 [2021-11-21 01:45:40,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:45:40,189 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:40,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-21 01:45:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-21 01:45:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-21 01:45:40,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:45:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2021-11-21 01:45:40,292 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2021-11-21 01:45:40,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:40,293 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2021-11-21 01:45:40,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:40,293 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2021-11-21 01:45:40,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:45:40,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:40,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:40,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:45:40,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:40,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:40,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1808167895, now seen corresponding path program 1 times [2021-11-21 01:45:40,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:40,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859663891] [2021-11-21 01:45:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:40,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:45:40,438 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:40,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859663891] [2021-11-21 01:45:40,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859663891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:40,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:40,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:45:40,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215360749] [2021-11-21 01:45:40,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:40,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:40,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:40,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:40,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:40,443 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:43,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:43,000 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2021-11-21 01:45:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:43,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 01:45:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:43,004 INFO L225 Difference]: With dead ends: 425 [2021-11-21 01:45:43,004 INFO L226 Difference]: Without dead ends: 276 [2021-11-21 01:45:43,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:43,007 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 27 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:43,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 770 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 01:45:43,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-21 01:45:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2021-11-21 01:45:43,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:45:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-11-21 01:45:43,027 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2021-11-21 01:45:43,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:43,027 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-11-21 01:45:43,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-11-21 01:45:43,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-21 01:45:43,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:43,031 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:43,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:45:43,031 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:43,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:43,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1787107309, now seen corresponding path program 1 times [2021-11-21 01:45:43,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:43,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644222754] [2021-11-21 01:45:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:43,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:43,058 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:43,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964064056] [2021-11-21 01:45:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:43,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:43,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:43,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:43,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:45:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:43,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:45:43,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:45:43,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:45:43,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:43,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644222754] [2021-11-21 01:45:43,727 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:43,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964064056] [2021-11-21 01:45:43,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964064056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:43,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:43,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:45:43,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749036985] [2021-11-21 01:45:43,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:43,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:45:43,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:43,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:45:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:45:43,731 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:46,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:46,471 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2021-11-21 01:45:46,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:45:46,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-21 01:45:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:46,475 INFO L225 Difference]: With dead ends: 614 [2021-11-21 01:45:46,475 INFO L226 Difference]: Without dead ends: 366 [2021-11-21 01:45:46,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:45:46,478 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 120 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:46,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 532 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-21 01:45:46,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-21 01:45:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2021-11-21 01:45:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-21 01:45:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2021-11-21 01:45:46,504 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2021-11-21 01:45:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:46,505 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2021-11-21 01:45:46,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2021-11-21 01:45:46,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 01:45:46,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:46,510 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:46,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:46,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:46,731 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:46,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:46,731 INFO L85 PathProgramCache]: Analyzing trace with hash -338981431, now seen corresponding path program 1 times [2021-11-21 01:45:46,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:46,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321811552] [2021-11-21 01:45:46,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:46,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:46,776 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:46,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654265121] [2021-11-21 01:45:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:46,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:46,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:46,783 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:46,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:45:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:47,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:45:47,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:47,286 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 [2021-11-21 01:45:47,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-21 01:45:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:45:47,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:45:47,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:47,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321811552] [2021-11-21 01:45:47,498 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:47,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654265121] [2021-11-21 01:45:47,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654265121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:47,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:47,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:45:47,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974340010] [2021-11-21 01:45:47,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:47,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:47,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:47,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:47,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:47,502 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:45:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:51,757 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2021-11-21 01:45:51,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:51,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-21 01:45:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:51,762 INFO L225 Difference]: With dead ends: 674 [2021-11-21 01:45:51,762 INFO L226 Difference]: Without dead ends: 362 [2021-11-21 01:45:51,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:51,765 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 12 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:51,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 772 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-11-21 01:45:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-21 01:45:51,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-21 01:45:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-21 01:45:51,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2021-11-21 01:45:51,789 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2021-11-21 01:45:51,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:51,789 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2021-11-21 01:45:51,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:45:51,790 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2021-11-21 01:45:51,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-21 01:45:51,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:51,795 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:51,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:52,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:52,017 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:52,018 INFO L85 PathProgramCache]: Analyzing trace with hash -334329145, now seen corresponding path program 1 times [2021-11-21 01:45:52,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:52,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570356806] [2021-11-21 01:45:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:52,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:52,062 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:52,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061474467] [2021-11-21 01:45:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:52,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:52,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:52,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:52,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:45:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:52,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:45:52,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:45:52,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:45:52,692 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:52,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570356806] [2021-11-21 01:45:52,694 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:52,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061474467] [2021-11-21 01:45:52,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061474467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:52,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:52,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:45:52,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636478240] [2021-11-21 01:45:52,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:52,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:45:52,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:52,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:45:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:45:52,697 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:45:55,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:55,064 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2021-11-21 01:45:55,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:45:55,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2021-11-21 01:45:55,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:55,067 INFO L225 Difference]: With dead ends: 820 [2021-11-21 01:45:55,067 INFO L226 Difference]: Without dead ends: 484 [2021-11-21 01:45:55,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:45:55,068 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:55,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 530 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 01:45:55,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-21 01:45:55,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2021-11-21 01:45:55,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-21 01:45:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2021-11-21 01:45:55,089 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2021-11-21 01:45:55,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:55,089 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2021-11-21 01:45:55,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:45:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2021-11-21 01:45:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-21 01:45:55,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:55,109 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:55,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 01:45:55,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:55,310 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:55,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:55,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1903584894, now seen corresponding path program 1 times [2021-11-21 01:45:55,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:55,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338029632] [2021-11-21 01:45:55,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:55,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:55,332 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:55,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768598730] [2021-11-21 01:45:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:55,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:55,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:55,334 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:55,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:45:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:55,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:45:55,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-21 01:45:55,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:45:55,997 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:55,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338029632] [2021-11-21 01:45:55,997 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:55,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768598730] [2021-11-21 01:45:55,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768598730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:55,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:55,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:45:55,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256687431] [2021-11-21 01:45:55,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:55,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:55,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:55,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:55,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:55,999 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:45:57,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:57,145 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2021-11-21 01:45:57,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:57,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2021-11-21 01:45:57,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:57,149 INFO L225 Difference]: With dead ends: 719 [2021-11-21 01:45:57,149 INFO L226 Difference]: Without dead ends: 351 [2021-11-21 01:45:57,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:57,151 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 438 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:57,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 334 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-21 01:45:57,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-21 01:45:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-21 01:45:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 01:45:57,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2021-11-21 01:45:57,170 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2021-11-21 01:45:57,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:57,171 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2021-11-21 01:45:57,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:45:57,171 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2021-11-21 01:45:57,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 01:45:57,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:57,172 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:57,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-21 01:45:57,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-21 01:45:57,395 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:57,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1222209427, now seen corresponding path program 1 times [2021-11-21 01:45:57,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:57,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865488374] [2021-11-21 01:45:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:57,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:57,414 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:57,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224572320] [2021-11-21 01:45:57,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:57,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:57,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:57,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:57,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:52:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:59,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:52:59,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:52:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:52:59,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:52:59,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:59,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865488374] [2021-11-21 01:52:59,686 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:52:59,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224572320] [2021-11-21 01:52:59,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224572320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:52:59,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:52:59,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:52:59,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235314730] [2021-11-21 01:52:59,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:52:59,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:52:59,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:52:59,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:52:59,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:52:59,691 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:53:04,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:53:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:04,275 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2021-11-21 01:53:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:53:04,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2021-11-21 01:53:04,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:04,278 INFO L225 Difference]: With dead ends: 684 [2021-11-21 01:53:04,278 INFO L226 Difference]: Without dead ends: 353 [2021-11-21 01:53:04,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:53:04,280 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:04,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-21 01:53:04,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-21 01:53:04,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-21 01:53:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2021-11-21 01:53:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2021-11-21 01:53:04,301 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2021-11-21 01:53:04,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:04,301 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2021-11-21 01:53:04,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:53:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2021-11-21 01:53:04,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-21 01:53:04,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:04,303 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:04,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-21 01:53:04,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:53:04,513 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:53:04,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:04,517 INFO L85 PathProgramCache]: Analyzing trace with hash 221127857, now seen corresponding path program 1 times [2021-11-21 01:53:04,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:04,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81583555] [2021-11-21 01:53:04,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:04,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:04,539 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:53:04,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628994255] [2021-11-21 01:53:04,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:04,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:53:04,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:53:04,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:53:04,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efcb0c5d-411e-41b7-a724-e6897c71adf2/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:56:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:56:23,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:56:23,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:56:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-21 01:56:23,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:56:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:56:23,748 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:56:23,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81583555] [2021-11-21 01:56:23,749 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:56:23,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628994255] [2021-11-21 01:56:23,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628994255] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:56:23,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1356179863] [2021-11-21 01:56:23,772 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2021-11-21 01:56:23,772 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:56:23,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:56:23,782 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:56:23,783 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:56:24,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,111 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:56:24,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 01:56:24,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:56:24,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:56:24,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:56:24,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,196 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 26 treesize of output 28 [2021-11-21 01:56:24,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:56:24,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,404 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:56:24,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-21 01:56:24,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,491 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:56:24,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:56:24,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:56:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,577 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:56:24,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:56:26,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 01:56:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-21 01:56:26,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:26,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:56:26,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,615 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 28 treesize of output 31 [2021-11-21 01:56:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,664 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 28 treesize of output 31 [2021-11-21 01:56:26,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-21 01:56:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:56:26,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:26,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:56:27,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,079 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:56:27,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:56:27,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:56:27,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,290 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 01:56:27,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 01:56:27,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:27,358 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:56:27,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-21 01:56:27,942 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 13 treesize of output 9 [2021-11-21 01:56:27,951 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 [2021-11-21 01:56:27,959 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 [2021-11-21 01:56:28,009 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:56:28,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 01:56:28,037 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:56:28,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 01:56:28,068 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:56:28,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 01:56:28,183 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 14 treesize of output 10 [2021-11-21 01:56:28,193 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 [2021-11-21 01:56:28,203 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 14 treesize of output 10 [2021-11-21 01:56:28,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:56:28,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:56:28,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:56:28,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:56:28,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:56:28,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:56:36,027 WARN L227 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:56:36,028 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:56:36,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:56:36,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:45,942 WARN L227 SmtUtils]: Spent 9.88s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:56:45,942 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:56:45,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:56:59,143 WARN L227 SmtUtils]: Spent 13.05s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:56:59,144 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 01:56:59,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-21 01:56:59,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:59,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:59,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:01,082 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-21 01:57:01,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25950 treesize of output 25981 [2021-11-21 01:57:01,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:01,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:02,042 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:57:02,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25960 treesize of output 25974 [2021-11-21 01:57:03,556 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:03,699 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:04,167 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:04,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:04,377 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 01:57:04,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 20 [2021-11-21 01:57:04,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:05,047 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-21 01:57:05,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-21 01:57:05,828 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:05,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:05,850 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:05,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:05,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:05,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:05,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:05,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:05,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:05,927 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-11-21 01:57:05,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 817 treesize of output 369 [2021-11-21 01:57:06,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:06,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:06,637 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:06,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:06,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:06,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:06,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:06,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:06,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:06,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 815 treesize of output 365 [2021-11-21 01:57:06,938 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:07,600 INFO L244 Elim1Store]: Index analysis took 268 ms [2021-11-21 01:57:09,409 INFO L354 Elim1Store]: treesize reduction 520, result has 72.0 percent of original size [2021-11-21 01:57:09,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 826 treesize of output 1708 [2021-11-21 01:57:11,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:11,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:11,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:11,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:11,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:12,174 INFO L354 Elim1Store]: treesize reduction 360, result has 68.8 percent of original size [2021-11-21 01:57:12,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 805 treesize of output 1161 [2021-11-21 01:57:12,670 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:13,230 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:13,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:13,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:13,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:13,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:13,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:13,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:13,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:13,356 INFO L244 Elim1Store]: Index analysis took 127 ms [2021-11-21 01:57:13,549 INFO L354 Elim1Store]: treesize reduction 4, result has 98.2 percent of original size [2021-11-21 01:57:13,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 805 treesize of output 583 [2021-11-21 01:57:13,823 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:16,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:16,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:16,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:16,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:16,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:16,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:16,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:16,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:16,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:16,657 INFO L244 Elim1Store]: Index analysis took 138 ms [2021-11-21 01:57:16,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 817 treesize of output 369 [2021-11-21 01:57:17,249 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:17,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:17,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:17,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:17,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:17,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 796 treesize of output 366 [2021-11-21 01:57:17,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:17,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:17,972 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:17,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:17,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:18,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:18,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:18,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:18,071 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:57:18,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 817 treesize of output 369 [2021-11-21 01:57:19,429 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:19,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:19,460 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:19,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:19,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:19,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:19,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:19,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:19,559 INFO L244 Elim1Store]: Index analysis took 133 ms [2021-11-21 01:57:19,675 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:57:19,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 749 treesize of output 559 [2021-11-21 01:57:19,949 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:20,290 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:20,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:20,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:57:20,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:20,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:20,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 728 treesize of output 366 [2021-11-21 01:57:20,683 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:57:22,278 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-21 01:57:22,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1660 treesize of output 1668 [2021-11-21 01:57:23,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:23,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-21 01:57:23,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:23,695 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:57:23,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 13 [2021-11-21 01:57:24,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:24,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:24,170 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-21 01:57:24,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 16 [2021-11-21 01:57:24,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:24,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:24,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:57:24,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 47 [2021-11-21 01:57:32,448 INFO L190 IndexEqualityManager]: detected not equals via solver