./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.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_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/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_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/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_87011e1a-7da8-41a4-a0d2-09652f26f943/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 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:17:17,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:17:17,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:17:17,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:17:17,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:17:17,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:17:17,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:17:17,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:17:17,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:17:17,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:17:17,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:17:17,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:17:17,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:17:17,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:17:17,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:17:17,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:17:17,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:17:17,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:17:17,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:17:17,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:17:17,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:17:17,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:17:17,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:17:17,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:17:17,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:17:17,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:17:17,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:17:17,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:17:17,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:17:17,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:17:17,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:17:17,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:17:17,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:17:17,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:17:17,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:17:17,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:17:17,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:17:17,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:17:17,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:17:17,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:17:17,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:17:17,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:17:17,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:17:17,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:17:17,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:17:17,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:17:17,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:17:17,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:17:17,292 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:17:17,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:17:17,293 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:17:17,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:17:17,293 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:17:17,293 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:17:17,293 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:17:17,294 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:17:17,294 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:17:17,294 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:17:17,294 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:17:17,294 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:17:17,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:17:17,295 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:17:17,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:17:17,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:17:17,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:17:17,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:17:17,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:17:17,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:17:17,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:17:17,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:17:17,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:17:17,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:17:17,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:17:17,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:17:17,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:17:17,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:17:17,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:17:17,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:17:17,298 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:17:17,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:17:17,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:17:17,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:17:17,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:17:17,299 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_87011e1a-7da8-41a4-a0d2-09652f26f943/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 [2021-11-21 01:17:17,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:17:17,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:17:17,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:17:17,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:17:17,645 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:17:17,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2021-11-21 01:17:17,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/data/cf27cf8a4/44ce034ad2b24b55a6ddf53cb89a226f/FLAG6ff019d59 [2021-11-21 01:17:18,467 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:17:18,468 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2021-11-21 01:17:18,500 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/data/cf27cf8a4/44ce034ad2b24b55a6ddf53cb89a226f/FLAG6ff019d59 [2021-11-21 01:17:18,709 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/data/cf27cf8a4/44ce034ad2b24b55a6ddf53cb89a226f [2021-11-21 01:17:18,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:17:18,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:17:18,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:17:18,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:17:18,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:17:18,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:17:18" (1/1) ... [2021-11-21 01:17:18,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43cfc287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:18, skipping insertion in model container [2021-11-21 01:17:18,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:17:18" (1/1) ... [2021-11-21 01:17:18,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:17:18,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:17:19,259 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_87011e1a-7da8-41a4-a0d2-09652f26f943/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[33021,33034] [2021-11-21 01:17:19,391 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_87011e1a-7da8-41a4-a0d2-09652f26f943/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[45234,45247] [2021-11-21 01:17:19,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:17:19,407 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:17:19,453 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_87011e1a-7da8-41a4-a0d2-09652f26f943/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[33021,33034] [2021-11-21 01:17:19,546 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_87011e1a-7da8-41a4-a0d2-09652f26f943/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[45234,45247] [2021-11-21 01:17:19,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:17:19,608 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:17:19,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19 WrapperNode [2021-11-21 01:17:19,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:17:19,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:17:19,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:17:19,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:17:19,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,741 INFO L137 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-21 01:17:19,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:17:19,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:17:19,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:17:19,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:17:19,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:17:19,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:17:19,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:17:19,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:17:19,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (1/1) ... [2021-11-21 01:17:19,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:17:19,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:17:19,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:17:19,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:17:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:17:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:17:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:17:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:17:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:17:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:17:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-21 01:17:19,966 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-21 01:17:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:17:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:17:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:17:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:17:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:17:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:17:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:17:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:17:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:17:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:17:20,195 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:17:20,197 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:17:21,371 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:17:21,815 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:17:21,815 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-21 01:17:21,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:17:21 BoogieIcfgContainer [2021-11-21 01:17:21,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:17:21,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:17:21,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:17:21,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:17:21,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:17:18" (1/3) ... [2021-11-21 01:17:21,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a35a4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:17:21, skipping insertion in model container [2021-11-21 01:17:21,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:19" (2/3) ... [2021-11-21 01:17:21,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a35a4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:17:21, skipping insertion in model container [2021-11-21 01:17:21,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:17:21" (3/3) ... [2021-11-21 01:17:21,829 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test8-1.i [2021-11-21 01:17:21,838 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:17:21,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:17:21,903 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:17:21,919 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:17:21,919 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:17:21,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-21 01:17:21,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:17:21,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:21,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:21,957 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:17:21,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:21,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1967293167, now seen corresponding path program 1 times [2021-11-21 01:17:21,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:21,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767476043] [2021-11-21 01:17:21,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:21,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:22,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:22,172 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:22,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767476043] [2021-11-21 01:17:22,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767476043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:22,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:22,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:17:22,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582773462] [2021-11-21 01:17:22,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:22,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:17:22,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:22,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:17:22,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:17:22,221 INFO L87 Difference]: Start difference. First operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:22,624 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2021-11-21 01:17:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:17:22,627 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:17:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:22,640 INFO L225 Difference]: With dead ends: 295 [2021-11-21 01:17:22,641 INFO L226 Difference]: Without dead ends: 146 [2021-11-21 01:17:22,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:17:22,650 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:22,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:17:22,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-21 01:17:22,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-21 01:17:22,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-21 01:17:22,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2021-11-21 01:17:22,712 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2021-11-21 01:17:22,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:22,713 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2021-11-21 01:17:22,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:22,714 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2021-11-21 01:17:22,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:17:22,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:22,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:22,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:17:22,717 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:17:22,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:22,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1767054038, now seen corresponding path program 1 times [2021-11-21 01:17:22,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:22,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691482532] [2021-11-21 01:17:22,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:22,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:22,789 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:22,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691482532] [2021-11-21 01:17:22,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691482532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:22,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:22,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:17:22,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402826449] [2021-11-21 01:17:22,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:22,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:17:22,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:22,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:17:22,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:17:22,794 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:25,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:17:25,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:25,950 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2021-11-21 01:17:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:17:25,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-21 01:17:25,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:25,957 INFO L225 Difference]: With dead ends: 293 [2021-11-21 01:17:25,957 INFO L226 Difference]: Without dead ends: 202 [2021-11-21 01:17:25,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:17:25,960 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:25,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 488 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2021-11-21 01:17:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-21 01:17:25,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2021-11-21 01:17:25,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-21 01:17:25,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2021-11-21 01:17:25,983 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2021-11-21 01:17:25,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:25,984 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2021-11-21 01:17:25,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:25,984 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2021-11-21 01:17:25,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 01:17:25,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:25,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:25,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:17:25,987 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:17:25,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:25,987 INFO L85 PathProgramCache]: Analyzing trace with hash -430271198, now seen corresponding path program 1 times [2021-11-21 01:17:25,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:25,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533967947] [2021-11-21 01:17:25,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:25,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:26,010 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:17:26,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233201914] [2021-11-21 01:17:26,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:26,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:17:26,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:17:26,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:17:26,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:17:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:26,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:17:26,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:17:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:26,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:17:26,453 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:26,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533967947] [2021-11-21 01:17:26,454 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:17:26,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233201914] [2021-11-21 01:17:26,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233201914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:26,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:26,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:17:26,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595623937] [2021-11-21 01:17:26,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:26,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:17:26,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:26,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:17:26,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:17:26,461 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:28,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:17:28,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:28,525 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2021-11-21 01:17:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:17:28,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-21 01:17:28,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:28,528 INFO L225 Difference]: With dead ends: 341 [2021-11-21 01:17:28,528 INFO L226 Difference]: Without dead ends: 196 [2021-11-21 01:17:28,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:17:28,531 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:28,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 343 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 01:17:28,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-21 01:17:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2021-11-21 01:17:28,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-21 01:17:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2021-11-21 01:17:28,552 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2021-11-21 01:17:28,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:28,553 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2021-11-21 01:17:28,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:28,553 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2021-11-21 01:17:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:17:28,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:28,555 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:28,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:17:28,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:17:28,771 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:17:28,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:28,772 INFO L85 PathProgramCache]: Analyzing trace with hash 308571032, now seen corresponding path program 1 times [2021-11-21 01:17:28,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:28,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217245915] [2021-11-21 01:17:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:28,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:28,789 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:17:28,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704846477] [2021-11-21 01:17:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:28,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:17:28,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:17:28,810 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:17:28,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:17:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:29,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:17:29,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:17:29,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:29,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:17:29,597 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:29,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217245915] [2021-11-21 01:17:29,597 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:17:29,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704846477] [2021-11-21 01:17:29,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704846477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:29,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:29,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:17:29,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121302601] [2021-11-21 01:17:29,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:29,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:17:29,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:29,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:17:29,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:17:29,600 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:30,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:30,500 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2021-11-21 01:17:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:17:30,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-11-21 01:17:30,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:30,510 INFO L225 Difference]: With dead ends: 372 [2021-11-21 01:17:30,511 INFO L226 Difference]: Without dead ends: 195 [2021-11-21 01:17:30,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:17:30,513 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:30,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 518 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 01:17:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-21 01:17:30,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-21 01:17:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-21 01:17:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2021-11-21 01:17:30,532 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2021-11-21 01:17:30,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:30,532 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2021-11-21 01:17:30,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:30,533 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2021-11-21 01:17:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:17:30,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:30,535 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:30,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:17:30,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:17:30,762 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:17:30,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:30,762 INFO L85 PathProgramCache]: Analyzing trace with hash -282668078, now seen corresponding path program 1 times [2021-11-21 01:17:30,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:30,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381065020] [2021-11-21 01:17:30,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:30,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:30,783 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:17:30,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420643670] [2021-11-21 01:17:30,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:30,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:17:30,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:17:30,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:17:30,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87011e1a-7da8-41a4-a0d2-09652f26f943/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:17:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:32,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:17:32,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:17:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:17:32,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:17:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:17:32,575 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:32,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381065020] [2021-11-21 01:17:32,576 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:17:32,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420643670] [2021-11-21 01:17:32,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420643670] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:17:32,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [975681427] [2021-11-21 01:17:32,607 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-21 01:17:32,608 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:17:32,613 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:17:32,619 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:17:32,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:17:32,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:32,774 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 [2021-11-21 01:17:32,793 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 [2021-11-21 01:17:32,806 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 [2021-11-21 01:17:32,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:32,833 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 01:17:32,834 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 [2021-11-21 01:17:32,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:32,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:32,879 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:17:32,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 01:17:33,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,052 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:17:33,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:17:33,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:17:33,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,132 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:17:33,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:17:33,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,178 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 52 treesize of output 49 [2021-11-21 01:17:33,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:33,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:17:34,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:17:34,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:17:34,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 01:17:34,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-21 01:17:34,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:17:34,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:34,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2021-11-21 01:17:35,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:17:35,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,253 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:17:35,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:17:35,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:17:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:17:35,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,468 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 01:17:35,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 01:17:35,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:35,540 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:17:35,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-21 01:17:36,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:36,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:17:36,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:36,172 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:17:36,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 01:17:36,201 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:17:36,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 01:17:36,226 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:17:36,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 01:17:36,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:17:36,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:17:36,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:17:36,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:17:36,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:17:36,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:17:36,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:17:36,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:17:36,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:36,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:17:44,318 WARN L227 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:17:44,319 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:17:44,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:17:44,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:54,927 WARN L227 SmtUtils]: Spent 10.57s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:17:54,928 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:17:54,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:18:08,800 WARN L227 SmtUtils]: Spent 13.72s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:18:08,802 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:18:08,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2916 treesize of output 2686 [2021-11-21 01:18:09,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:09,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:10,108 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:18:10,109 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 25954 treesize of output 25968 [2021-11-21 01:18:10,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:10,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:10,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:11,160 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 01:18:11,160 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 25953 treesize of output 25968 [2021-11-21 01:18:12,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:12,829 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:18:12,829 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 50 treesize of output 32 [2021-11-21 01:18:13,171 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:18:13,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:13,986 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:18:13,987 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 51 treesize of output 61 [2021-11-21 01:18:16,181 INFO L244 Elim1Store]: Index analysis took 186 ms [2021-11-21 01:18:18,871 INFO L354 Elim1Store]: treesize reduction 122, result has 93.4 percent of original size [2021-11-21 01:18:18,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 8869 treesize of output 10151 [2021-11-21 01:18:22,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:22,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-21 01:18:23,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:23,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:23,751 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-21 01:18:23,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 77 [2021-11-21 01:18:24,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:24,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 42 [2021-11-21 01:18:24,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,954 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:24,955 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 46 treesize of output 28 [2021-11-21 01:18:25,177 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:18:33,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:33,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:33,471 INFO L190 IndexEqualityManager]: detected not equals via solver