./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.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_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/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_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/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_8837059f-f525-4d40-9af9-5fd376dfa1d9/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 f0735ebc421a940bb70b06777060abaef432af6ff0cfdeb82bfa2e45a81b4e11 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:52:21,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:52:21,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:52:21,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:52:21,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:52:21,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:52:21,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:52:21,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:52:21,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:52:21,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:52:21,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:52:21,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:52:21,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:52:21,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:52:21,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:52:21,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:52:21,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:52:21,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:52:21,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:52:21,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:52:21,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:52:21,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:52:21,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:52:21,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:52:21,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:52:21,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:52:21,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:52:21,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:52:21,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:52:21,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:52:21,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:52:21,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:52:21,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:52:21,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:52:21,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:52:21,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:52:21,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:52:21,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:52:21,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:52:21,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:52:21,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:52:21,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:52:21,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:52:21,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:52:21,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:52:21,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:52:21,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:52:21,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:52:21,174 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:52:21,175 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:52:21,175 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:52:21,175 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:52:21,176 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:52:21,176 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:52:21,176 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:52:21,177 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:52:21,177 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:52:21,177 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:52:21,177 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:52:21,177 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:52:21,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:52:21,178 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:52:21,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:52:21,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:52:21,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:52:21,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:52:21,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:52:21,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:52:21,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:52:21,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:52:21,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:52:21,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:52:21,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:52:21,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:52:21,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:52:21,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:52:21,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:52:21,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:52:21,182 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:52:21,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:52:21,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:52:21,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:52:21,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:52:21,183 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_8837059f-f525-4d40-9af9-5fd376dfa1d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0735ebc421a940bb70b06777060abaef432af6ff0cfdeb82bfa2e45a81b4e11 [2021-11-20 23:52:21,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:52:21,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:52:21,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:52:21,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:52:21,500 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:52:21,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i [2021-11-20 23:52:21,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/data/dd9b3165d/2615119f58784012bf68c0f105930882/FLAGea72616d4 [2021-11-20 23:52:22,185 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:52:22,186 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i [2021-11-20 23:52:22,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/data/dd9b3165d/2615119f58784012bf68c0f105930882/FLAGea72616d4 [2021-11-20 23:52:22,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/data/dd9b3165d/2615119f58784012bf68c0f105930882 [2021-11-20 23:52:22,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:52:22,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:52:22,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:52:22,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:52:22,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:52:22,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:52:22" (1/1) ... [2021-11-20 23:52:22,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b873ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:22, skipping insertion in model container [2021-11-20 23:52:22,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:52:22" (1/1) ... [2021-11-20 23:52:22,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:52:22,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:52:22,939 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_8837059f-f525-4d40-9af9-5fd376dfa1d9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i[37019,37032] [2021-11-20 23:52:23,089 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_8837059f-f525-4d40-9af9-5fd376dfa1d9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i[47352,47365] [2021-11-20 23:52:23,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:52:23,117 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:52:23,161 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_8837059f-f525-4d40-9af9-5fd376dfa1d9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i[37019,37032] [2021-11-20 23:52:23,228 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_8837059f-f525-4d40-9af9-5fd376dfa1d9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-1.i[47352,47365] [2021-11-20 23:52:23,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:52:23,303 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:52:23,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23 WrapperNode [2021-11-20 23:52:23,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:52:23,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:52:23,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:52:23,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:52:23,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,451 INFO L137 Inliner]: procedures = 208, calls = 235, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 884 [2021-11-20 23:52:23,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:52:23,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:52:23,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:52:23,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:52:23,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:52:23,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:52:23,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:52:23,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:52:23,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (1/1) ... [2021-11-20 23:52:23,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:52:23,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:52:23,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:52:23,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:52:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:52:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:52:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:52:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:52:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:52:23,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:52:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:52:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:52:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:52:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:52:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:52:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:52:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:52:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:52:23,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:52:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:52:23,939 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:52:23,940 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:52:24,835 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:52:25,105 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:52:25,105 INFO L301 CfgBuilder]: Removed 54 assume(true) statements. [2021-11-20 23:52:25,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:52:25 BoogieIcfgContainer [2021-11-20 23:52:25,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:52:25,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:52:25,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:52:25,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:52:25,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:52:22" (1/3) ... [2021-11-20 23:52:25,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7413b1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:52:25, skipping insertion in model container [2021-11-20 23:52:25,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:52:23" (2/3) ... [2021-11-20 23:52:25,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7413b1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:52:25, skipping insertion in model container [2021-11-20 23:52:25,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:52:25" (3/3) ... [2021-11-20 23:52:25,118 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test2-1.i [2021-11-20 23:52:25,124 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:52:25,124 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 23:52:25,171 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:52:25,178 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 [2021-11-20 23:52:25,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 23:52:25,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 96 states have (on average 1.8020833333333333) internal successors, (173), 103 states have internal predecessors, (173), 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) [2021-11-20 23:52:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 23:52:25,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:25,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:52:25,216 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:25,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:25,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1416617355, now seen corresponding path program 1 times [2021-11-20 23:52:25,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:25,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700801952] [2021-11-20 23:52:25,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:25,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:25,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:52:25,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:25,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700801952] [2021-11-20 23:52:25,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700801952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:52:25,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:52:25,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:52:25,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144921956] [2021-11-20 23:52:25,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:52:25,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:52:25,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:52:25,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:52:25,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:52:25,423 INFO L87 Difference]: Start difference. First operand has 109 states, 96 states have (on average 1.8020833333333333) internal successors, (173), 103 states have internal predecessors, (173), 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) [2021-11-20 23:52:25,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:25,899 INFO L93 Difference]: Finished difference Result 217 states and 382 transitions. [2021-11-20 23:52:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:52:25,906 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 [2021-11-20 23:52:25,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:25,917 INFO L225 Difference]: With dead ends: 217 [2021-11-20 23:52:25,917 INFO L226 Difference]: Without dead ends: 107 [2021-11-20 23:52:25,921 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 [2021-11-20 23:52:25,925 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:52:25,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 23:52:25,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-20 23:52:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-20 23:52:25,998 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) [2021-11-20 23:52:26,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2021-11-20 23:52:26,002 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 8 [2021-11-20 23:52:26,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:52:26,002 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2021-11-20 23:52:26,002 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) [2021-11-20 23:52:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2021-11-20 23:52:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 23:52:26,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:26,005 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] [2021-11-20 23:52:26,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:52:26,005 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:26,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:26,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1000196391, now seen corresponding path program 1 times [2021-11-20 23:52:26,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:26,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474831233] [2021-11-20 23:52:26,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:26,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:52:26,140 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:26,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474831233] [2021-11-20 23:52:26,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474831233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:52:26,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:52:26,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:52:26,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514391306] [2021-11-20 23:52:26,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:52:26,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:52:26,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:52:26,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:52:26,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:52:26,144 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) [2021-11-20 23:52:27,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:27,334 INFO L93 Difference]: Finished difference Result 222 states and 282 transitions. [2021-11-20 23:52:27,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:52:27,339 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 [2021-11-20 23:52:27,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:27,341 INFO L225 Difference]: With dead ends: 222 [2021-11-20 23:52:27,342 INFO L226 Difference]: Without dead ends: 168 [2021-11-20 23:52:27,343 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 [2021-11-20 23:52:27,344 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 66 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:52:27,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 319 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 23:52:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-20 23:52:27,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 109. [2021-11-20 23:52:27,361 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) [2021-11-20 23:52:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2021-11-20 23:52:27,363 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 20 [2021-11-20 23:52:27,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:52:27,363 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2021-11-20 23:52:27,364 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) [2021-11-20 23:52:27,364 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2021-11-20 23:52:27,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 23:52:27,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:27,366 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] [2021-11-20 23:52:27,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:52:27,366 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:27,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:27,367 INFO L85 PathProgramCache]: Analyzing trace with hash -981044614, now seen corresponding path program 1 times [2021-11-20 23:52:27,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:27,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934482558] [2021-11-20 23:52:27,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:27,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:27,401 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:52:27,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119525444] [2021-11-20 23:52:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:27,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:52:27,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:52:27,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:52:27,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:52:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:27,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:52:27,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:52:27,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:52:27,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:52:27,942 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:27,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934482558] [2021-11-20 23:52:27,943 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:52:27,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119525444] [2021-11-20 23:52:27,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119525444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:52:27,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:52:27,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:52:27,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845999751] [2021-11-20 23:52:27,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:52:27,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:52:27,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:52:27,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:52:27,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:52:27,954 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) [2021-11-20 23:52:29,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:52:29,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:29,720 INFO L93 Difference]: Finished difference Result 260 states and 324 transitions. [2021-11-20 23:52:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:52:29,738 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 [2021-11-20 23:52:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:29,740 INFO L225 Difference]: With dead ends: 260 [2021-11-20 23:52:29,740 INFO L226 Difference]: Without dead ends: 154 [2021-11-20 23:52:29,742 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 [2021-11-20 23:52:29,744 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 43 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:52:29,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 238 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:52:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-20 23:52:29,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2021-11-20 23:52:29,773 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) [2021-11-20 23:52:29,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2021-11-20 23:52:29,780 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 44 [2021-11-20 23:52:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:52:29,786 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2021-11-20 23:52:29,787 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) [2021-11-20 23:52:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2021-11-20 23:52:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 23:52:29,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:29,793 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] [2021-11-20 23:52:29,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:52:30,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:52:30,013 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:30,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:30,014 INFO L85 PathProgramCache]: Analyzing trace with hash 2039789200, now seen corresponding path program 1 times [2021-11-20 23:52:30,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:30,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189445497] [2021-11-20 23:52:30,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:30,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:30,058 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:52:30,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811660326] [2021-11-20 23:52:30,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:30,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:52:30,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:52:30,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:52:30,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:52:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:30,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:52:30,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:52:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:52:30,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:52:30,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:30,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189445497] [2021-11-20 23:52:30,504 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:52:30,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811660326] [2021-11-20 23:52:30,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811660326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:52:30,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:52:30,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:52:30,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035171101] [2021-11-20 23:52:30,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:52:30,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:52:30,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:52:30,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:52:30,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:52:30,513 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) [2021-11-20 23:52:31,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:31,708 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2021-11-20 23:52:31,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:52:31,710 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 [2021-11-20 23:52:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:31,711 INFO L225 Difference]: With dead ends: 258 [2021-11-20 23:52:31,711 INFO L226 Difference]: Without dead ends: 122 [2021-11-20 23:52:31,713 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 [2021-11-20 23:52:31,714 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 [2021-11-20 23:52:31,714 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] [2021-11-20 23:52:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-20 23:52:31,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-20 23:52:31,728 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) [2021-11-20 23:52:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2021-11-20 23:52:31,756 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 57 [2021-11-20 23:52:31,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:52:31,762 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2021-11-20 23:52:31,762 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) [2021-11-20 23:52:31,764 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2021-11-20 23:52:31,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 23:52:31,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:31,769 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] [2021-11-20 23:52:31,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:52:31,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:52:31,973 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:31,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:31,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1917685262, now seen corresponding path program 1 times [2021-11-20 23:52:31,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:31,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552515648] [2021-11-20 23:52:31,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:31,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:31,995 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:52:31,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309701229] [2021-11-20 23:52:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:31,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:52:31,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:52:32,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:52:32,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:52:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:32,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:52:32,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:52:32,949 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:52:32,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:52:32,949 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:32,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552515648] [2021-11-20 23:52:32,950 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:52:32,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309701229] [2021-11-20 23:52:32,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309701229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:52:32,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:52:32,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:52:32,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741346923] [2021-11-20 23:52:32,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:52:32,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:52:32,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:52:32,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:52:32,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:52:32,953 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:52:34,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:52:34,530 INFO L93 Difference]: Finished difference Result 227 states and 276 transitions. [2021-11-20 23:52:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:52:34,540 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-20 23:52:34,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:52:34,542 INFO L225 Difference]: With dead ends: 227 [2021-11-20 23:52:34,542 INFO L226 Difference]: Without dead ends: 124 [2021-11-20 23:52:34,542 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 [2021-11-20 23:52:34,543 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:52:34,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 344 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:52:34,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-20 23:52:34,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-11-20 23:52:34,560 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) [2021-11-20 23:52:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2021-11-20 23:52:34,562 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 64 [2021-11-20 23:52:34,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:52:34,562 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2021-11-20 23:52:34,563 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:52:34,563 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2021-11-20 23:52:34,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 23:52:34,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:52:34,566 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] [2021-11-20 23:52:34,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:52:34,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:52:34,781 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:52:34,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:52:34,782 INFO L85 PathProgramCache]: Analyzing trace with hash 759391854, now seen corresponding path program 1 times [2021-11-20 23:52:34,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:52:34,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030421374] [2021-11-20 23:52:34,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:34,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:52:34,801 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:52:34,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [204800420] [2021-11-20 23:52:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:52:34,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:52:34,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:52:34,812 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:52:34,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837059f-f525-4d40-9af9-5fd376dfa1d9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:52:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:52:36,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 23:52:36,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:52:36,735 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 23:52:36,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:52:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 23:52:37,044 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:52:37,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030421374] [2021-11-20 23:52:37,045 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:52:37,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204800420] [2021-11-20 23:52:37,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204800420] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:52:37,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1834451600] [2021-11-20 23:52:37,076 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-20 23:52:37,076 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:52:37,081 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:52:37,085 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:52:37,086 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:52:37,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,281 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-20 23:52:37,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 17 treesize of output 26 [2021-11-20 23:52:37,307 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 15 treesize of output 1 [2021-11-20 23:52:37,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2021-11-20 23:52:37,337 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 15 treesize of output 1 [2021-11-20 23:52:37,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,391 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 23:52:37,392 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 [2021-11-20 23:52:37,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:52:37,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:52:37,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,614 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:52:37,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-20 23:52:37,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,726 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-20 23:52:37,727 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 [2021-11-20 23:52:37,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:37,800 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:52:37,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-20 23:52:39,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,246 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 [2021-11-20 23:52:39,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,276 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 [2021-11-20 23:52:39,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,328 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 [2021-11-20 23:52:39,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-20 23:52:39,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2021-11-20 23:52:39,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-20 23:52:39,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,653 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 [2021-11-20 23:52:39,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,752 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 [2021-11-20 23:52:39,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,848 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:52:39,849 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 [2021-11-20 23:52:39,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,921 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 [2021-11-20 23:52:39,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:39,993 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-20 23:52:39,994 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 127 treesize of output 138 [2021-11-20 23:52:40,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,088 INFO L354 Elim1Store]: treesize reduction 224, result has 10.4 percent of original size [2021-11-20 23:52:40,088 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 126 treesize of output 132 [2021-11-20 23:52:40,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:40,236 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 [2021-11-20 23:52:40,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 23:52:40,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 23:52:40,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 23:52:40,977 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-20 23:52:40,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-20 23:52:41,012 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:52:41,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-20 23:52:41,049 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:52:41,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-20 23:52:41,186 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 [2021-11-20 23:52:41,198 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 [2021-11-20 23:52:41,208 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 [2021-11-20 23:52:41,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,291 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 [2021-11-20 23:52:41,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,347 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 [2021-11-20 23:52:41,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,438 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 [2021-11-20 23:52:41,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,778 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 [2021-11-20 23:52:41,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,820 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 [2021-11-20 23:52:41,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:52:41,858 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 [2021-11-20 23:52:49,258 WARN L227 SmtUtils]: Spent 7.27s 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) [2021-11-20 23:52:49,259 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:52:49,260 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 [2021-11-20 23:52:49,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:01,602 WARN L227 SmtUtils]: Spent 12.28s 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) [2021-11-20 23:53:01,603 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:53:01,604 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 [2021-11-20 23:53:14,318 WARN L227 SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:53:14,319 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-20 23:53:14,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-20 23:53:14,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:14,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:15,546 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-20 23:53:15,547 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 25950 treesize of output 25964 [2021-11-20 23:53:15,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:15,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:15,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:16,584 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-20 23:53:16,585 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 25949 treesize of output 25964 [2021-11-20 23:53:18,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:18,670 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-20 23:53:18,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-20 23:53:18,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:19,181 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-20 23:53:19,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-20 23:53:19,791 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:53:19,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:53:20,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:20,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:53:20,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:20,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:53:20,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:20,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:20,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:20,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:20,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:20,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:53:20,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:20,141 INFO L244 Elim1Store]: Index analysis took 158 ms [2021-11-20 23:53:20,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 848 treesize of output 386 [2021-11-20 23:53:21,120 INFO L244 Elim1Store]: Index analysis took 337 ms [2021-11-20 23:53:21,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:23,126 INFO L354 Elim1Store]: treesize reduction 474, result has 74.3 percent of original size [2021-11-20 23:53:23,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 2205 treesize of output 3111 [2021-11-20 23:53:25,883 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-20 23:53:25,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 846 treesize of output 854 [2021-11-20 23:53:26,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:26,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 23:53:27,305 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:53:27,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:27,857 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-20 23:53:27,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 26 [2021-11-20 23:53:28,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:53:28,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:28,088 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 [2021-11-20 23:53:28,590 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:53:32,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:53:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver