./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:50:22,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:50:22,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:50:22,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:50:22,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:50:22,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:50:22,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:50:22,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:50:22,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:50:22,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:50:22,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:50:22,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:50:22,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:50:22,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:50:22,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:50:22,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:50:22,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:50:22,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:50:22,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:50:22,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:50:22,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:50:22,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:50:22,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:50:22,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:50:22,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:50:22,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:50:22,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:50:22,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:50:22,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:50:22,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:50:22,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:50:22,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:50:22,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:50:22,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:50:22,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:50:22,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:50:22,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:50:22,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:50:22,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:50:22,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:50:22,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:50:22,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:50:22,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:50:22,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:50:22,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:50:22,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:50:22,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:50:22,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:50:22,515 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:50:22,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:50:22,515 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:50:22,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:50:22,516 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:50:22,516 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:50:22,517 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:50:22,517 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:50:22,517 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:50:22,517 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:50:22,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:50:22,518 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:50:22,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:50:22,519 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:50:22,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:50:22,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:50:22,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:50:22,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:50:22,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:50:22,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:50:22,521 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:50:22,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:50:22,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:50:22,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:50:22,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:50:22,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:50:22,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:50:22,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:50:22,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:50:22,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:50:22,523 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:50:22,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:50:22,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:50:22,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:50:22,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:50:22,525 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_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2021-11-21 01:50:22,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:50:22,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:50:22,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:50:22,811 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:50:22,811 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:50:22,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2021-11-21 01:50:22,873 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/data/fd100d5af/24e854ee76914607854b9e414e381032/FLAG8d87a9009 [2021-11-21 01:50:23,472 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:50:23,473 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2021-11-21 01:50:23,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/data/fd100d5af/24e854ee76914607854b9e414e381032/FLAG8d87a9009 [2021-11-21 01:50:23,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/data/fd100d5af/24e854ee76914607854b9e414e381032 [2021-11-21 01:50:23,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:50:23,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:50:23,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:50:23,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:50:23,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:50:23,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:50:23" (1/1) ... [2021-11-21 01:50:23,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445cc3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:23, skipping insertion in model container [2021-11-21 01:50:23,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:50:23" (1/1) ... [2021-11-21 01:50:23,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:50:23,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:50:24,341 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_2df38ac7-8c89-42f3-8e06-6ffc7c560396/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i[37019,37032] [2021-11-21 01:50:24,487 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_2df38ac7-8c89-42f3-8e06-6ffc7c560396/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i[47352,47365] [2021-11-21 01:50:24,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:50:24,510 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:50:24,558 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_2df38ac7-8c89-42f3-8e06-6ffc7c560396/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i[37019,37032] [2021-11-21 01:50:24,641 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_2df38ac7-8c89-42f3-8e06-6ffc7c560396/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i[47352,47365] [2021-11-21 01:50:24,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:50:24,694 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:50:24,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24 WrapperNode [2021-11-21 01:50:24,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:50:24,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:50:24,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:50:24,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:50:24,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,837 INFO L137 Inliner]: procedures = 208, calls = 286, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1039 [2021-11-21 01:50:24,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:50:24,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:50:24,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:50:24,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:50:24,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:50:24,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:50:24,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:50:24,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:50:24,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (1/1) ... [2021-11-21 01:50:24,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:50:24,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:50:24,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:50:24,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:50:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:50:25,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:50:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:50:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:50:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:50:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:50:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:50:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:50:25,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:50:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:50:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:50:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:50:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:50:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:50:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:50:25,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:50:25,190 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:50:25,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:50:26,418 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:50:26,768 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:50:26,768 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 01:50:26,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:50:26 BoogieIcfgContainer [2021-11-21 01:50:26,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:50:26,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:50:26,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:50:26,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:50:26,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:50:23" (1/3) ... [2021-11-21 01:50:26,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff22578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:50:26, skipping insertion in model container [2021-11-21 01:50:26,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:50:24" (2/3) ... [2021-11-21 01:50:26,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff22578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:50:26, skipping insertion in model container [2021-11-21 01:50:26,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:50:26" (3/3) ... [2021-11-21 01:50:26,788 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test2-2.i [2021-11-21 01:50:26,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:50:26,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:50:26,851 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:50:26,870 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:50:26,870 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:50:26,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:50:26,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:50:26,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:26,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:26,897 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:50:26,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:26,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1967387469, now seen corresponding path program 1 times [2021-11-21 01:50:26,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:26,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023140747] [2021-11-21 01:50:26,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:26,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:27,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:50:27,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:27,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023140747] [2021-11-21 01:50:27,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023140747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:27,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:27,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:50:27,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888955826] [2021-11-21 01:50:27,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:27,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:50:27,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:27,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:50:27,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:50:27,137 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) 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) [2021-11-21 01:50:29,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:50:29,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:29,108 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2021-11-21 01:50:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:50:29,131 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 [2021-11-21 01:50:29,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:29,142 INFO L225 Difference]: With dead ends: 245 [2021-11-21 01:50:29,142 INFO L226 Difference]: Without dead ends: 107 [2021-11-21 01:50:29,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:50:29,150 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:29,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 01:50:29,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-21 01:50:29,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-21 01:50:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 101 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:50:29,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2021-11-21 01:50:29,197 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 8 [2021-11-21 01:50:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:29,197 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2021-11-21 01:50:29,198 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) [2021-11-21 01:50:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2021-11-21 01:50:29,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:50:29,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:29,200 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] [2021-11-21 01:50:29,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:50:29,201 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:50:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:29,202 INFO L85 PathProgramCache]: Analyzing trace with hash 666058235, now seen corresponding path program 1 times [2021-11-21 01:50:29,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:29,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488066202] [2021-11-21 01:50:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:29,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:29,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:50:29,282 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:29,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488066202] [2021-11-21 01:50:29,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488066202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:29,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:29,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:50:29,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700070558] [2021-11-21 01:50:29,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:29,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:50:29,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:29,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:50:29,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:50:29,289 INFO L87 Difference]: Start difference. First operand 107 states and 132 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) [2021-11-21 01:50:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:30,339 INFO L93 Difference]: Finished difference Result 222 states and 282 transitions. [2021-11-21 01:50:30,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:50:30,344 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 [2021-11-21 01:50:30,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:30,347 INFO L225 Difference]: With dead ends: 222 [2021-11-21 01:50:30,347 INFO L226 Difference]: Without dead ends: 168 [2021-11-21 01:50:30,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:50:30,349 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 66 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:30,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 319 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-21 01:50:30,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-21 01:50:30,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 109. [2021-11-21 01:50:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 103 states have internal predecessors, (118), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:50:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2021-11-21 01:50:30,381 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 20 [2021-11-21 01:50:30,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:30,382 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2021-11-21 01:50:30,382 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) [2021-11-21 01:50:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2021-11-21 01:50:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:50:30,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:30,388 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:30,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:50:30,389 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:50:30,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash -148459342, now seen corresponding path program 1 times [2021-11-21 01:50:30,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:30,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49976888] [2021-11-21 01:50:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:30,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:30,419 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:50:30,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167987435] [2021-11-21 01:50:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:30,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:50:30,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:50:30,427 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:50:30,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:50:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:30,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:50:30,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:50:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:50:30,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:50:30,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:30,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49976888] [2021-11-21 01:50:30,900 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:50:30,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167987435] [2021-11-21 01:50:30,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167987435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:30,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:30,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:50:30,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845907067] [2021-11-21 01:50:30,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:30,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:50:30,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:30,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:50:30,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:50:30,908 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-21 01:50:32,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:50:34,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:50:34,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:34,565 INFO L93 Difference]: Finished difference Result 260 states and 324 transitions. [2021-11-21 01:50:34,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:50:34,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-21 01:50:34,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:34,594 INFO L225 Difference]: With dead ends: 260 [2021-11-21 01:50:34,594 INFO L226 Difference]: Without dead ends: 154 [2021-11-21 01:50:34,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:50:34,598 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 43 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:34,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 238 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 01:50:34,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-21 01:50:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2021-11-21 01:50:34,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.2148148148148148) internal successors, (164), 146 states have internal predecessors, (164), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:50:34,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2021-11-21 01:50:34,619 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 44 [2021-11-21 01:50:34,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:34,619 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2021-11-21 01:50:34,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-21 01:50:34,620 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2021-11-21 01:50:34,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 01:50:34,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:34,623 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:34,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:50:34,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:50:34,827 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:50:34,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:34,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2144184370, now seen corresponding path program 1 times [2021-11-21 01:50:34,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:34,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146635241] [2021-11-21 01:50:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:34,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:34,850 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:50:34,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390644360] [2021-11-21 01:50:34,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:34,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:50:34,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:50:34,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:50:34,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:50:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:35,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:50:35,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:50:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:50:35,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:50:35,287 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:35,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146635241] [2021-11-21 01:50:35,287 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:50:35,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390644360] [2021-11-21 01:50:35,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390644360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:35,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:35,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:50:35,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728568170] [2021-11-21 01:50:35,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:35,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:50:35,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:50:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:50:35,289 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:50:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:36,480 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2021-11-21 01:50:36,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:50:36,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-21 01:50:36,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:36,483 INFO L225 Difference]: With dead ends: 258 [2021-11-21 01:50:36,483 INFO L226 Difference]: Without dead ends: 122 [2021-11-21 01:50:36,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:50:36,484 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 163 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:36,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 156 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 01:50:36,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-21 01:50:36,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-21 01:50:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 116 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:50:36,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2021-11-21 01:50:36,497 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 57 [2021-11-21 01:50:36,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:36,498 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2021-11-21 01:50:36,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:50:36,498 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2021-11-21 01:50:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 01:50:36,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:36,501 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:36,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:50:36,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:50:36,723 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:50:36,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:36,723 INFO L85 PathProgramCache]: Analyzing trace with hash 427509094, now seen corresponding path program 1 times [2021-11-21 01:50:36,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:36,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219576515] [2021-11-21 01:50:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:36,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:36,735 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:50:36,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269274011] [2021-11-21 01:50:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:36,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:50:36,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:50:36,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:50:36,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:50:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:57,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:50:57,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:50:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:50:57,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:50:57,676 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:57,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219576515] [2021-11-21 01:50:57,677 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:50:57,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269274011] [2021-11-21 01:50:57,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269274011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:50:57,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:50:57,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:50:57,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858337220] [2021-11-21 01:50:57,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:50:57,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:50:57,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:57,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:50:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:50:57,679 INFO L87 Difference]: Start difference. First operand 122 states and 146 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:50:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:58,632 INFO L93 Difference]: Finished difference Result 227 states and 276 transitions. [2021-11-21 01:50:58,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:50:58,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-21 01:50:58,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:58,637 INFO L225 Difference]: With dead ends: 227 [2021-11-21 01:50:58,637 INFO L226 Difference]: Without dead ends: 124 [2021-11-21 01:50:58,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:50:58,638 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:58,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 344 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 01:50:58,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-21 01:50:58,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-11-21 01:50:58,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 118 states have internal predecessors, (132), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-21 01:50:58,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2021-11-21 01:50:58,652 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 64 [2021-11-21 01:50:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:58,652 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2021-11-21 01:50:58,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:50:58,653 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2021-11-21 01:50:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:50:58,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:58,656 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:58,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 01:50:58,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:50:58,879 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:50:58,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:58,879 INFO L85 PathProgramCache]: Analyzing trace with hash -64659160, now seen corresponding path program 1 times [2021-11-21 01:50:58,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:58,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273104782] [2021-11-21 01:50:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:58,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:58,896 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:50:58,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249529555] [2021-11-21 01:50:58,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:58,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:50:58,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:50:58,898 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:50:58,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df38ac7-8c89-42f3-8e06-6ffc7c560396/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:51:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:51:08,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:51:08,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:51:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:51:08,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:51:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:51:09,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:51:09,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273104782] [2021-11-21 01:51:09,145 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:51:09,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249529555] [2021-11-21 01:51:09,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249529555] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:51:09,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1403846653] [2021-11-21 01:51:09,166 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-21 01:51:09,167 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:51:09,171 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:51:09,177 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:51:09,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:51:09,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,355 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:51:09,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 01:51:09,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:51:09,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,409 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 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:51:09,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:51:09,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:51:09,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,594 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:51:09,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:51:09,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-21 01:51:09,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:51:09,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:51:09,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:09,756 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:51:09,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:51:11,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 01:51:11,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-21 01:51:11,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:51:11,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:51:11,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:51:11,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 19 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 [2021-11-21 01:51:11,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:51:11,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,586 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:51:11,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:51:11,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:51:11,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:51:11,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,888 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 01:51:11,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 01:51:11,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:11,951 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:51:11,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-21 01:51:12,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:51:12,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:51:12,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:51:12,636 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:51:12,637 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 98 treesize of output 97 [2021-11-21 01:51:12,663 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:51:12,663 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 94 treesize of output 93 [2021-11-21 01:51:12,687 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:51:12,687 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 90 treesize of output 89 [2021-11-21 01:51:12,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:51:12,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:51:12,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:51:12,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:51:12,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:51:12,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:12,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:51:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:51:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:51:13,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:13,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:51:21,089 WARN L227 SmtUtils]: Spent 7.61s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:51:21,089 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:51:21,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:51:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:30,646 WARN L227 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:51:30,647 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:51:30,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:51:41,754 WARN L227 SmtUtils]: Spent 10.96s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:51:41,755 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:51:41,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2916 treesize of output 2686 [2021-11-21 01:51:42,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:42,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:42,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:43,368 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-21 01:51:43,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25954 treesize of output 25985 [2021-11-21 01:51:43,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:43,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:44,235 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:51:44,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25964 treesize of output 25978 [2021-11-21 01:51:46,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:46,982 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:51:46,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:51:47,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:47,590 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:51:47,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-21 01:51:48,753 INFO L244 Elim1Store]: Index analysis took 231 ms [2021-11-21 01:51:48,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,955 INFO L354 Elim1Store]: treesize reduction 476, result has 74.2 percent of original size [2021-11-21 01:51:50,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1741 treesize of output 2653 [2021-11-21 01:51:54,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:51:54,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:51:54,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:51:54,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:54,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:54,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:51:54,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:54,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:54,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:54,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:54,266 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-11-21 01:51:54,268 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 1741 treesize of output 1287 [2021-11-21 01:51:55,514 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:51:55,944 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:51:57,060 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:51:57,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:51:57,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:57,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:51:57,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:57,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:51:57,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:57,514 INFO L244 Elim1Store]: Index analysis took 163 ms [2021-11-21 01:51:58,099 INFO L354 Elim1Store]: treesize reduction 16, result has 95.9 percent of original size [2021-11-21 01:51:58,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1664 treesize of output 1656 [2021-11-21 01:51:59,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:00,276 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 01:52:00,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1304 treesize of output 1300 [2021-11-21 01:52:01,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:52:01,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:01,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2021-11-21 01:52:01,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:01,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-21 01:52:02,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:02,449 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:52:02,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 11 [2021-11-21 01:52:02,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:02,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:02,850 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:52:02,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 14 [2021-11-21 01:52:03,433 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:52:04,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:04,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:52:04,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-21 01:52:11,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:11,753 INFO L190 IndexEqualityManager]: detected not equals via solver