./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7 --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 b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:16:34,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:16:34,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:16:34,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:16:34,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:16:34,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:16:34,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:16:34,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:16:34,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:16:34,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:16:34,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:16:34,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:16:34,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:16:34,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:16:34,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:16:34,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:16:34,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:16:34,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:16:34,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:16:34,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:16:34,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:16:34,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:16:34,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:16:34,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:16:34,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:16:34,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:16:34,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:16:34,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:16:34,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:16:34,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:16:34,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:16:34,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:16:34,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:16:34,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:16:34,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:16:34,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:16:34,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:16:34,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:16:34,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:16:34,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:16:34,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:16:34,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:16:34,497 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:16:34,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:16:34,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:16:34,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:16:34,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:16:34,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:16:34,501 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:16:34,501 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:16:34,502 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:16:34,502 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:16:34,503 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:16:34,503 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:16:34,503 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:16:34,504 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:16:34,504 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:16:34,505 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:16:34,505 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:16:34,506 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:16:34,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:16:34,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:16:34,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:16:34,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:16:34,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:16:34,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:16:34,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:16:34,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:16:34,515 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:16:34,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:16:34,517 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:16:34,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:16:34,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:16:34,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:16:34,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:16:34,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:16:34,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:16:34,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:16:34,520 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:16:34,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:16:34,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:16:34,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:16:34,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:16:34,521 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_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 [2021-11-25 19:16:34,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:16:34,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:16:34,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:16:34,858 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:16:34,860 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:16:34,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2021-11-25 19:16:34,937 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/data/9f4a50817/b88cb766d25a4e408d5c1ef7374022fe/FLAG422081442 [2021-11-25 19:16:35,523 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:16:35,524 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2021-11-25 19:16:35,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/data/9f4a50817/b88cb766d25a4e408d5c1ef7374022fe/FLAG422081442 [2021-11-25 19:16:35,775 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/data/9f4a50817/b88cb766d25a4e408d5c1ef7374022fe [2021-11-25 19:16:35,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:16:35,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:16:35,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:16:35,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:16:35,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:16:35,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:16:35" (1/1) ... [2021-11-25 19:16:35,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7492179e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:35, skipping insertion in model container [2021-11-25 19:16:35,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:16:35" (1/1) ... [2021-11-25 19:16:35,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:16:35,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:16:36,578 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_743e40ba-340e-4758-b690-5880454eac30/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2021-11-25 19:16:36,812 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_743e40ba-340e-4758-b690-5880454eac30/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2021-11-25 19:16:36,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:16:36,850 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:16:36,904 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_743e40ba-340e-4758-b690-5880454eac30/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2021-11-25 19:16:36,965 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_743e40ba-340e-4758-b690-5880454eac30/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2021-11-25 19:16:36,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:16:37,019 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:16:37,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37 WrapperNode [2021-11-25 19:16:37,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:16:37,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:16:37,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:16:37,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:16:37,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,183 INFO L137 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-25 19:16:37,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:16:37,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:16:37,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:16:37,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:16:37,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:16:37,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:16:37,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:16:37,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:16:37,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (1/1) ... [2021-11-25 19:16:37,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:16:37,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:16:37,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:16:37,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:16:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:16:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:16:37,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:16:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:16:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:16:37,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:16:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-25 19:16:37,488 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-25 19:16:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:16:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:16:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:16:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:16:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 19:16:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:16:37,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:16:37,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:16:37,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:16:37,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:16:37,783 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:16:37,784 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:16:39,086 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:16:39,645 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:16:39,645 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-25 19:16:39,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:16:39 BoogieIcfgContainer [2021-11-25 19:16:39,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:16:39,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:16:39,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:16:39,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:16:39,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:16:35" (1/3) ... [2021-11-25 19:16:39,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525fbd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:16:39, skipping insertion in model container [2021-11-25 19:16:39,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:37" (2/3) ... [2021-11-25 19:16:39,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525fbd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:16:39, skipping insertion in model container [2021-11-25 19:16:39,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:16:39" (3/3) ... [2021-11-25 19:16:39,665 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-1.i [2021-11-25 19:16:39,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:16:39,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 19:16:39,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:16:39,784 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 [2021-11-25 19:16:39,784 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 19:16:39,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 19:16:39,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:16:39,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:39,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:16:39,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:16:39,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:39,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1967293167, now seen corresponding path program 1 times [2021-11-25 19:16:39,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:39,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513604409] [2021-11-25 19:16:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:39,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:16:40,022 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:40,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513604409] [2021-11-25 19:16:40,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513604409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:16:40,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:16:40,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:16:40,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77443066] [2021-11-25 19:16:40,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:16:40,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:16:40,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:16:40,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:16:40,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:16:40,072 INFO L87 Difference]: Start difference. First operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:16:40,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:40,512 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2021-11-25 19:16:40,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:16:40,515 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 19:16:40,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:40,529 INFO L225 Difference]: With dead ends: 295 [2021-11-25 19:16:40,529 INFO L226 Difference]: Without dead ends: 146 [2021-11-25 19:16:40,536 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 [2021-11-25 19:16:40,541 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:40,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 19:16:40,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-25 19:16:40,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-25 19:16:40,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 19:16:40,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2021-11-25 19:16:40,613 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2021-11-25 19:16:40,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:16:40,614 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2021-11-25 19:16:40,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:16:40,615 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2021-11-25 19:16:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 19:16:40,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:40,618 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] [2021-11-25 19:16:40,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:16:40,619 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:16:40,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1767054038, now seen corresponding path program 1 times [2021-11-25 19:16:40,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348684726] [2021-11-25 19:16:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:40,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:16:40,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:40,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348684726] [2021-11-25 19:16:40,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348684726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:16:40,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:16:40,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:16:40,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773649294] [2021-11-25 19:16:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:16:40,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:16:40,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:16:40,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:16:40,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:16:40,728 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:16:44,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:16:44,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:44,092 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2021-11-25 19:16:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:16:44,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-25 19:16:44,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:44,096 INFO L225 Difference]: With dead ends: 293 [2021-11-25 19:16:44,096 INFO L226 Difference]: Without dead ends: 202 [2021-11-25 19:16:44,097 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 [2021-11-25 19:16:44,099 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:44,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 488 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 19:16:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-25 19:16:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2021-11-25 19:16:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-25 19:16:44,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2021-11-25 19:16:44,131 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2021-11-25 19:16:44,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:16:44,132 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-11-25 19:16:44,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:16:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2021-11-25 19:16:44,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 19:16:44,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:44,134 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:16:44,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:16:44,148 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:16:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash -430271198, now seen corresponding path program 1 times [2021-11-25 19:16:44,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:44,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996055390] [2021-11-25 19:16:44,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:44,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:44,312 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:16:44,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542850951] [2021-11-25 19:16:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:44,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:16:44,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:16:44,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:16:44,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:16:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:45,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1591 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:16:45,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:16:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:16:45,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:16:45,317 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:45,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996055390] [2021-11-25 19:16:45,318 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:16:45,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542850951] [2021-11-25 19:16:45,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542850951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:16:45,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:16:45,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:16:45,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003513789] [2021-11-25 19:16:45,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:16:45,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:16:45,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:16:45,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:16:45,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:16:45,327 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2021-11-25 19:16:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:46,377 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2021-11-25 19:16:46,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:16:46,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 32 [2021-11-25 19:16:46,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:46,384 INFO L225 Difference]: With dead ends: 341 [2021-11-25 19:16:46,384 INFO L226 Difference]: Without dead ends: 196 [2021-11-25 19:16:46,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:16:46,388 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:46,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 343 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 19:16:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-25 19:16:46,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2021-11-25 19:16:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-25 19:16:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2021-11-25 19:16:46,412 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2021-11-25 19:16:46,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:16:46,413 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2021-11-25 19:16:46,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2021-11-25 19:16:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2021-11-25 19:16:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-25 19:16:46,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:46,415 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 19:16:46,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 19:16:46,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:16:46,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:16:46,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:46,633 INFO L85 PathProgramCache]: Analyzing trace with hash 308571032, now seen corresponding path program 1 times [2021-11-25 19:16:46,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:46,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591744159] [2021-11-25 19:16:46,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:46,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:46,685 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:16:46,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129594866] [2021-11-25 19:16:46,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:46,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:16:46,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:16:46,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:16:46,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:16:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:47,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 19:16:47,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:16:47,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:16:47,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:16:47,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:47,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591744159] [2021-11-25 19:16:47,851 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:16:47,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129594866] [2021-11-25 19:16:47,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129594866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:16:47,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:16:47,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:16:47,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616520053] [2021-11-25 19:16:47,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:16:47,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:16:47,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:16:47,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:16:47,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:16:47,855 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 19:16:49,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:49,474 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2021-11-25 19:16:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:16:49,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-11-25 19:16:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:49,499 INFO L225 Difference]: With dead ends: 372 [2021-11-25 19:16:49,499 INFO L226 Difference]: Without dead ends: 195 [2021-11-25 19:16:49,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:16:49,501 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:49,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 518 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 19:16:49,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-25 19:16:49,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-25 19:16:49,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-25 19:16:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2021-11-25 19:16:49,533 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2021-11-25 19:16:49,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:16:49,533 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2021-11-25 19:16:49,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 19:16:49,534 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2021-11-25 19:16:49,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 19:16:49,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:49,537 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] [2021-11-25 19:16:49,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:16:49,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:16:49,752 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:16:49,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:49,753 INFO L85 PathProgramCache]: Analyzing trace with hash -282668078, now seen corresponding path program 1 times [2021-11-25 19:16:49,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:49,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655773140] [2021-11-25 19:16:49,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:49,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:49,818 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:16:49,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8675390] [2021-11-25 19:16:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:49,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:16:49,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:16:49,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:16:49,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_743e40ba-340e-4758-b690-5880454eac30/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:16:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:51,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 19:16:51,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:16:51,658 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:16:51,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:16:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:16:51,867 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:51,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655773140] [2021-11-25 19:16:51,867 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:16:51,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8675390] [2021-11-25 19:16:51,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8675390] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:16:51,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [441992438] [2021-11-25 19:16:51,893 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-25 19:16:51,894 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:16:51,899 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:16:51,906 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:16:51,907 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:16:52,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,043 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 [2021-11-25 19:16:52,052 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 [2021-11-25 19:16:52,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,078 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 19:16:52,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-25 19:16:52,089 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 [2021-11-25 19:16:52,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,126 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 19:16:52,126 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 [2021-11-25 19:16:52,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,215 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 19:16:52,216 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 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-25 19:16:52,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,243 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 [2021-11-25 19:16:52,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,281 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 19:16:52,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 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 [2021-11-25 19:16:52,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 19:16:52,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,369 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 19:16:52,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 19:16:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2021-11-25 19:16:52,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2021-11-25 19:16:52,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 19:16:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 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 [2021-11-25 19:16:52,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:52,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2021-11-25 19:16:53,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2021-11-25 19:16:53,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 23 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2021-11-25 19:16:53,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2021-11-25 19:16:53,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2021-11-25 19:16:53,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,294 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 19:16:53,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2021-11-25 19:16:53,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 19:16:53,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 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 [2021-11-25 19:16:53,523 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 [2021-11-25 19:16:53,528 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 [2021-11-25 19:16:53,534 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 [2021-11-25 19:16:53,604 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 19:16:53,604 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 57 treesize of output 60 [2021-11-25 19:16:53,643 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 19:16:53,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 19:16:53,682 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 19:16:53,683 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 47 treesize of output 50 [2021-11-25 19:16:53,731 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 [2021-11-25 19:16:53,737 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 [2021-11-25 19:16:53,744 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 [2021-11-25 19:16:53,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 56 treesize of output 22 [2021-11-25 19:16:53,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 19:16:53,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:53,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 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 [2021-11-25 19:16:54,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 56 treesize of output 22 [2021-11-25 19:16:54,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 19:16:54,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:16:54,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 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 [2021-11-25 19:17:04,111 WARN L227 SmtUtils]: Spent 9.82s 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) [2021-11-25 19:17:04,113 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 19:17:04,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 19:17:04,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:16,693 WARN L227 SmtUtils]: Spent 12.43s 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) [2021-11-25 19:17:16,694 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 19:17:16,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 19:17:16,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:17,288 INFO L244 Elim1Store]: Index analysis took 376 ms [2021-11-25 19:17:28,684 WARN L227 SmtUtils]: Spent 11.11s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:17:28,685 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 19:17:28,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 19:17:29,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:29,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:29,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:29,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:29,531 INFO L244 Elim1Store]: Index analysis took 285 ms [2021-11-25 19:17:30,762 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 19:17:30,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 42 treesize of output 73 [2021-11-25 19:17:31,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:31,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:31,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:31,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:31,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 19:17:31,570 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:31,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:31,793 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:17:31,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 19:17:31,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:32,200 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:17:32,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 19:17:32,305 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:17:32,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:32,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 19:17:32,373 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:32,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:32,786 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-25 19:17:32,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-25 19:17:32,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:32,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:32,942 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:17:32,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 42 [2021-11-25 19:17:33,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:33,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:33,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:33,412 INFO L354 Elim1Store]: treesize reduction 20, result has 53.5 percent of original size [2021-11-25 19:17:33,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 67 treesize of output 67 [2021-11-25 19:17:33,488 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:33,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:33,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:33,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:17:33,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 19:17:34,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:34,798 INFO L244 Elim1Store]: Index analysis took 168 ms [2021-11-25 19:17:35,982 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:17:35,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 4034 treesize of output 5426 [2021-11-25 19:17:44,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:44,583 INFO L244 Elim1Store]: Index analysis took 194 ms [2021-11-25 19:17:44,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:44,872 INFO L354 Elim1Store]: treesize reduction 1832, result has 0.1 percent of original size [2021-11-25 19:17:44,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 4045 treesize of output 3583 [2021-11-25 19:17:45,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,322 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 19:17:45,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 4050 treesize of output 3588 [2021-11-25 19:17:45,420 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:45,506 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:17:45,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,533 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:17:45,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,610 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-11-25 19:17:45,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 2156 treesize of output 1706 [2021-11-25 19:17:45,667 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:45,747 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:45,820 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:17:45,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:17:45,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:45,937 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-11-25 19:17:46,070 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:17:46,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 2156 treesize of output 1758 [2021-11-25 19:17:46,204 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:46,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:46,554 INFO L244 Elim1Store]: Index analysis took 217 ms [2021-11-25 19:17:46,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:48,290 INFO L354 Elim1Store]: treesize reduction 476, result has 74.2 percent of original size [2021-11-25 19:17:48,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 2677 treesize of output 3577 [2021-11-25 19:17:48,555 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:48,617 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:17:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:52,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:52,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:53,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:17:53,016 INFO L244 Elim1Store]: Index analysis took 264 ms [2021-11-25 19:17:58,420 WARN L227 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 152 DAG size of output: 122 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:17:58,422 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 19:17:58,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 273781 treesize of output 274365 [2021-11-25 19:22:44,021 WARN L227 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 1707 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)