./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/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 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:41:04,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:41:04,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:41:04,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:41:04,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:41:04,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:41:04,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:41:04,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:41:04,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:41:04,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:41:04,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:41:04,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:41:04,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:41:04,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:41:04,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:41:04,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:41:04,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:41:04,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:41:04,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:41:04,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:41:04,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:41:04,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:41:04,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:41:04,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:41:04,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:41:04,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:41:04,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:41:04,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:41:04,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:41:04,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:41:04,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:41:04,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:41:04,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:41:04,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:41:04,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:41:04,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:41:04,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:41:04,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:41:04,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:41:04,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:41:04,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:41:04,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:41:05,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:41:05,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:41:05,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:41:05,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:41:05,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:41:05,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:41:05,016 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:41:05,017 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:41:05,017 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:41:05,017 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:41:05,018 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:41:05,018 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:41:05,018 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:41:05,018 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:41:05,019 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:41:05,019 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:41:05,020 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:41:05,021 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:41:05,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:41:05,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:41:05,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:41:05,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:41:05,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:41:05,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:41:05,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:41:05,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:41:05,023 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:41:05,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:41:05,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:41:05,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:41:05,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:41:05,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:41:05,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:41:05,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:41:05,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:41:05,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:41:05,026 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:41:05,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:41:05,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:41:05,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:41:05,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:41:05,027 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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67499ec0709cfdcc368630c5b1d94f26157589b8bf16f22cf5d62554760c6dd7 [2021-11-21 01:41:05,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:41:05,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:41:05,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:41:05,324 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:41:05,325 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:41:05,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2021-11-21 01:41:05,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/data/b0dae9a8e/f03865fa81814bc3b2c489e20cb9deb2/FLAGb6500951d [2021-11-21 01:41:06,006 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:41:06,007 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i [2021-11-21 01:41:06,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/data/b0dae9a8e/f03865fa81814bc3b2c489e20cb9deb2/FLAGb6500951d [2021-11-21 01:41:06,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/data/b0dae9a8e/f03865fa81814bc3b2c489e20cb9deb2 [2021-11-21 01:41:06,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:41:06,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:41:06,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:41:06,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:41:06,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:41:06,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:06" (1/1) ... [2021-11-21 01:41:06,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215413ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:06, skipping insertion in model container [2021-11-21 01:41:06,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:06" (1/1) ... [2021-11-21 01:41:06,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:41:06,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:41:06,835 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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[33021,33034] [2021-11-21 01:41:06,986 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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[44124,44137] [2021-11-21 01:41:06,987 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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[44245,44258] [2021-11-21 01:41:06,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:41:07,003 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:41:07,034 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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[33021,33034] [2021-11-21 01:41:07,102 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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[44124,44137] [2021-11-21 01:41:07,103 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_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-1.i[44245,44258] [2021-11-21 01:41:07,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:41:07,156 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:41:07,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07 WrapperNode [2021-11-21 01:41:07,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:41:07,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:41:07,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:41:07,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:41:07,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,291 INFO L137 Inliner]: procedures = 176, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-21 01:41:07,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:41:07,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:41:07,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:41:07,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:41:07,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:41:07,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:41:07,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:41:07,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:41:07,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (1/1) ... [2021-11-21 01:41:07,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:41:07,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:07,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:41:07,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:41:07,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:41:07,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:41:07,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:41:07,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:41:07,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:41:07,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:41:07,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:41:07,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:41:07,570 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:41:07,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:41:07,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:41:07,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:41:07,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:41:07,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:41:07,775 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:41:07,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:41:08,841 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:41:09,232 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:41:09,232 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 01:41:09,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:09 BoogieIcfgContainer [2021-11-21 01:41:09,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:41:09,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:41:09,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:41:09,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:41:09,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:41:06" (1/3) ... [2021-11-21 01:41:09,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ece55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:09, skipping insertion in model container [2021-11-21 01:41:09,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:07" (2/3) ... [2021-11-21 01:41:09,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ece55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:41:09, skipping insertion in model container [2021-11-21 01:41:09,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:41:09" (3/3) ... [2021-11-21 01:41:09,250 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test7-1.i [2021-11-21 01:41:09,260 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:41:09,260 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:41:09,357 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:41:09,374 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 01:41:09,378 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:41:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 101 states have (on average 1.811881188118812) internal successors, (183), 103 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:41:09,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 01:41:09,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:09,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:09,408 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:09,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:09,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1906206326, now seen corresponding path program 1 times [2021-11-21 01:41:09,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:09,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416441433] [2021-11-21 01:41:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:09,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:09,617 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 01:41:09,618 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:09,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416441433] [2021-11-21 01:41:09,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416441433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:09,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:09,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:41:09,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836628354] [2021-11-21 01:41:09,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:09,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:41:09,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:09,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:41:09,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:41:09,657 INFO L87 Difference]: Start difference. First operand has 108 states, 101 states have (on average 1.811881188118812) internal successors, (183), 103 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 01:41:10,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:10,091 INFO L93 Difference]: Finished difference Result 215 states and 377 transitions. [2021-11-21 01:41:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:41:10,100 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-21 01:41:10,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:10,108 INFO L225 Difference]: With dead ends: 215 [2021-11-21 01:41:10,108 INFO L226 Difference]: Without dead ends: 107 [2021-11-21 01:41:10,112 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 01:41:10,115 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:10,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:41:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-21 01:41:10,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-21 01:41:10,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:41:10,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2021-11-21 01:41:10,163 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2021-11-21 01:41:10,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:10,163 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2021-11-21 01:41:10,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 01:41:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2021-11-21 01:41:10,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 01:41:10,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:10,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:10,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:41:10,166 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:10,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:10,166 INFO L85 PathProgramCache]: Analyzing trace with hash 30908713, now seen corresponding path program 1 times [2021-11-21 01:41:10,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:10,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998896638] [2021-11-21 01:41:10,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:10,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:10,225 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 01:41:10,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:10,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998896638] [2021-11-21 01:41:10,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998896638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:10,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:10,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:41:10,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853229296] [2021-11-21 01:41:10,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:10,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:10,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:10,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:10,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:10,229 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 01:41:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:12,172 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2021-11-21 01:41:12,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:12,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-21 01:41:12,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:12,182 INFO L225 Difference]: With dead ends: 219 [2021-11-21 01:41:12,183 INFO L226 Difference]: Without dead ends: 165 [2021-11-21 01:41:12,183 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 01:41:12,185 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:12,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 01:41:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-21 01:41:12,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2021-11-21 01:41:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:41:12,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2021-11-21 01:41:12,231 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2021-11-21 01:41:12,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:12,231 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2021-11-21 01:41:12,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 01:41:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2021-11-21 01:41:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:41:12,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:12,234 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:12,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:41:12,235 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:12,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:12,236 INFO L85 PathProgramCache]: Analyzing trace with hash -667749530, now seen corresponding path program 1 times [2021-11-21 01:41:12,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:12,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851239766] [2021-11-21 01:41:12,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:12,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:12,261 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:41:12,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345547607] [2021-11-21 01:41:12,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:12,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:12,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:12,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:41:12,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:41:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:12,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:41:12,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:41:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:41:12,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:41:12,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:12,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851239766] [2021-11-21 01:41:12,702 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:41:12,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345547607] [2021-11-21 01:41:12,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345547607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:12,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:12,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:41:12,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435241281] [2021-11-21 01:41:12,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:12,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:41:12,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:12,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:41:12,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:41:12,705 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 01:41:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:13,706 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2021-11-21 01:41:13,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:41:13,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-11-21 01:41:13,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:13,714 INFO L225 Difference]: With dead ends: 265 [2021-11-21 01:41:13,714 INFO L226 Difference]: Without dead ends: 159 [2021-11-21 01:41:13,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 01:41:13,716 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:13,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 208 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-21 01:41:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-21 01:41:13,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2021-11-21 01:41:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:41:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2021-11-21 01:41:13,732 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2021-11-21 01:41:13,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:13,732 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2021-11-21 01:41:13,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 01:41:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2021-11-21 01:41:13,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 01:41:13,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:13,735 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] [2021-11-21 01:41:13,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:41:13,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:13,949 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:13,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:13,950 INFO L85 PathProgramCache]: Analyzing trace with hash -357184176, now seen corresponding path program 1 times [2021-11-21 01:41:13,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:13,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002475679] [2021-11-21 01:41:13,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:13,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:13,997 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:41:13,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733341402] [2021-11-21 01:41:13,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:13,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:13,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:14,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:41:14,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:41:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:14,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:41:14,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:41:14,394 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 01:41:14,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-21 01:41:14,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:41:14,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:41:14,444 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:14,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002475679] [2021-11-21 01:41:14,445 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:41:14,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733341402] [2021-11-21 01:41:14,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733341402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:14,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:14,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:14,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414383106] [2021-11-21 01:41:14,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:14,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:14,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:14,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:14,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:14,449 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:41:17,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:17,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:17,903 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2021-11-21 01:41:17,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:17,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-11-21 01:41:17,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:17,912 INFO L225 Difference]: With dead ends: 201 [2021-11-21 01:41:17,912 INFO L226 Difference]: Without dead ends: 197 [2021-11-21 01:41:17,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 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 01:41:17,915 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:17,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 283 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-21 01:41:17,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-21 01:41:17,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2021-11-21 01:41:17,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:41:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2021-11-21 01:41:17,931 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2021-11-21 01:41:17,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:17,933 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2021-11-21 01:41:17,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:41:17,933 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2021-11-21 01:41:17,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 01:41:17,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:17,936 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:17,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-21 01:41:18,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:18,149 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:18,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:18,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1806423702, now seen corresponding path program 1 times [2021-11-21 01:41:18,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:18,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672972637] [2021-11-21 01:41:18,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:18,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:18,164 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:41:18,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711484730] [2021-11-21 01:41:18,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:18,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:18,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:18,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:41:18,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:41:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:18,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:41:18,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:41:18,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:41:18,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:41:18,579 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:18,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672972637] [2021-11-21 01:41:18,579 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:41:18,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711484730] [2021-11-21 01:41:18,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711484730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:18,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:18,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:18,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817377974] [2021-11-21 01:41:18,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:18,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:18,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:18,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:18,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:18,582 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:41:19,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:19,200 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2021-11-21 01:41:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:19,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-21 01:41:19,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:19,210 INFO L225 Difference]: With dead ends: 344 [2021-11-21 01:41:19,210 INFO L226 Difference]: Without dead ends: 206 [2021-11-21 01:41:19,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:19,211 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 227 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:19,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 175 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:41:19,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-21 01:41:19,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2021-11-21 01:41:19,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:41:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2021-11-21 01:41:19,228 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2021-11-21 01:41:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:19,229 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2021-11-21 01:41:19,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:41:19,229 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2021-11-21 01:41:19,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 01:41:19,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:19,231 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:19,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:41:19,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:19,457 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:19,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:19,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1808435595, now seen corresponding path program 1 times [2021-11-21 01:41:19,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:19,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125059282] [2021-11-21 01:41:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:19,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:19,474 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:41:19,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [767428349] [2021-11-21 01:41:19,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:19,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:19,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:19,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:41:19,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:41:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:20,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:41:20,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:41:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:41:20,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:41:20,730 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:20,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125059282] [2021-11-21 01:41:20,730 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:41:20,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767428349] [2021-11-21 01:41:20,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767428349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:20,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:20,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:20,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451694639] [2021-11-21 01:41:20,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:20,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:20,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:20,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:20,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:20,733 INFO L87 Difference]: Start difference. First operand 199 states and 232 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:41:23,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:23,064 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2021-11-21 01:41:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:23,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-21 01:41:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:23,085 INFO L225 Difference]: With dead ends: 381 [2021-11-21 01:41:23,085 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 01:41:23,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:23,087 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:23,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 317 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 01:41:23,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 01:41:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-21 01:41:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 01:41:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2021-11-21 01:41:23,122 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2021-11-21 01:41:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:23,123 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2021-11-21 01:41:23,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:41:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2021-11-21 01:41:23,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:41:23,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:23,126 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:23,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:41:23,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:23,349 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:23,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:23,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1272133155, now seen corresponding path program 1 times [2021-11-21 01:41:23,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:23,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507643809] [2021-11-21 01:41:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:23,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:23,376 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:41:23,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869487125] [2021-11-21 01:41:23,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:23,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:23,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:23,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:41:23,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78de3164-6d8a-40ea-9d00-28cbd5a4eb16/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:41:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:24,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 01:41:24,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:41:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:41:25,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:41:25,438 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:41:25,438 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:25,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507643809] [2021-11-21 01:41:25,438 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:41:25,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869487125] [2021-11-21 01:41:25,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869487125] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:41:25,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [975559230] [2021-11-21 01:41:25,460 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-21 01:41:25,460 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:41:25,465 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:41:25,470 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:41:25,470 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:41:25,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:41:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,629 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:41:25,629 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 01:41:25,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:41:25,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:41:25,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:41:25,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,833 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:41:25,834 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 01:41:25,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-21 01:41:25,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:41:25,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,962 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 01:41:25,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:25,986 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:41:25,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:41:27,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,352 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 01:41:27,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,410 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 01:41:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-21 01:41:27,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,500 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 01:41:27,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,557 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 01:41:27,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,613 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 01:41:27,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-21 01:41:27,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-21 01:41:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,823 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 01:41:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,882 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 01:41:27,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,959 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-21 01:41:27,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 127 treesize of output 138 [2021-11-21 01:41:27,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:27,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,072 INFO L354 Elim1Store]: treesize reduction 232, result has 10.1 percent of original size [2021-11-21 01:41:28,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 126 treesize of output 132 [2021-11-21 01:41:28,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-21 01:41:28,659 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 01:41:28,671 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 01:41:28,682 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 01:41:28,737 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:41:28,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-21 01:41:28,757 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:41:28,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-21 01:41:28,778 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:41:28,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-21 01:41:28,839 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 01:41:28,849 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 01:41:28,858 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 01:41:28,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,934 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 01:41:28,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:28,991 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 01:41:29,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,014 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 01:41:29,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,345 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 01:41:29,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,380 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 01:41:29,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:29,469 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 01:41:37,663 WARN L227 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:41:37,664 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:41:37,665 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 01:41:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:46,918 WARN L227 SmtUtils]: Spent 9.22s 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 01:41:46,919 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:41:46,920 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 01:41:59,295 WARN L227 SmtUtils]: Spent 12.24s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:41:59,296 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 01:41:59,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-21 01:41:59,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:41:59,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:00,269 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:42:00,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25950 treesize of output 25964 [2021-11-21 01:42:00,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:00,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:00,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:01,218 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 01:42:01,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25949 treesize of output 25964 [2021-11-21 01:42:02,639 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:02,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:03,041 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 01:42:03,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-21 01:42:03,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:03,606 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-21 01:42:03,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-21 01:42:04,377 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:04,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:04,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:04,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:04,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:04,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:04,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:04,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:04,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:04,492 INFO L244 Elim1Store]: Index analysis took 116 ms [2021-11-21 01:42:04,496 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 1241 treesize of output 791 [2021-11-21 01:42:05,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:05,300 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:05,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:05,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:05,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:05,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:05,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:05,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:05,372 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 1243 treesize of output 795 [2021-11-21 01:42:05,666 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:06,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:06,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,032 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:06,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,101 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 1243 treesize of output 795 [2021-11-21 01:42:06,339 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:06,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,696 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:06,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,714 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:06,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:06,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:06,829 INFO L244 Elim1Store]: Index analysis took 160 ms [2021-11-21 01:42:06,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1252 treesize of output 798 [2021-11-21 01:42:07,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:07,337 INFO L244 Elim1Store]: Index analysis took 172 ms [2021-11-21 01:42:08,554 INFO L354 Elim1Store]: treesize reduction 582, result has 68.4 percent of original size [2021-11-21 01:42:08,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 1252 treesize of output 2058 [2021-11-21 01:42:10,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:10,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:10,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:10,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:10,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:10,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:10,944 INFO L354 Elim1Store]: treesize reduction 23, result has 66.7 percent of original size [2021-11-21 01:42:10,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 1243 treesize of output 841 [2021-11-21 01:42:11,375 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:12,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:12,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:12,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:12,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:12,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:12,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:12,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:12,992 INFO L244 Elim1Store]: Index analysis took 134 ms [2021-11-21 01:42:13,087 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:42:13,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 1231 treesize of output 1013 [2021-11-21 01:42:13,253 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:13,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:13,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:13,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:13,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:13,761 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 1222 treesize of output 792 [2021-11-21 01:42:13,962 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:14,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:14,649 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:14,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:14,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:14,730 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-11-21 01:42:14,935 INFO L354 Elim1Store]: treesize reduction 1152, result has 0.1 percent of original size [2021-11-21 01:42:14,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1231 treesize of output 795 [2021-11-21 01:42:15,126 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:16,951 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-21 01:42:16,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1343 treesize of output 1351 [2021-11-21 01:42:17,588 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:18,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:18,219 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-21 01:42:18,220 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 38 treesize of output 32 [2021-11-21 01:42:18,599 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:42:19,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:19,056 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 32 treesize of output 16 [2021-11-21 01:42:23,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:23,981 INFO L190 IndexEqualityManager]: detected not equals via solver