./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:32:29,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:32:29,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:32:29,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:32:29,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:32:29,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:32:29,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:32:29,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:32:29,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:32:29,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:32:29,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:32:29,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:32:29,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:32:29,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:32:29,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:32:29,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:32:29,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:32:29,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:32:29,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:32:29,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:32:29,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:32:29,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:32:29,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:32:29,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:32:29,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:32:29,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:32:29,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:32:29,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:32:29,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:32:29,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:32:29,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:32:29,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:32:29,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:32:29,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:32:29,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:32:29,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:32:29,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:32:29,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:32:29,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:32:29,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:32:29,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:32:29,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-20 23:32:30,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:32:30,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:32:30,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:32:30,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:32:30,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:32:30,013 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:32:30,013 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:32:30,013 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:32:30,014 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:32:30,014 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:32:30,014 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:32:30,015 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:32:30,015 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:32:30,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:32:30,016 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:32:30,016 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:32:30,017 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:32:30,017 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:32:30,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:32:30,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:32:30,019 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 23:32:30,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:32:30,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:32:30,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:32:30,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:32:30,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:32:30,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:32:30,021 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 23:32:30,022 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:32:30,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:32:30,022 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:32:30,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:32:30,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:32:30,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:32:30,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:30,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:32:30,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:32:30,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:32:30,024 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:32:30,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:32:30,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:32:30,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:32:30,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:32:30,025 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2021-11-20 23:32:30,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:32:30,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:32:30,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:32:30,324 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:32:30,325 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:32:30,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2021-11-20 23:32:30,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/data/fe10c263e/a98500c50cc24e3180305a3a34d54ffc/FLAG5b985084a [2021-11-20 23:32:31,057 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:32:31,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2021-11-20 23:32:31,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/data/fe10c263e/a98500c50cc24e3180305a3a34d54ffc/FLAG5b985084a [2021-11-20 23:32:31,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/data/fe10c263e/a98500c50cc24e3180305a3a34d54ffc [2021-11-20 23:32:31,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:32:31,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:32:31,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:31,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:32:31,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:32:31,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:31" (1/1) ... [2021-11-20 23:32:31,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5777af71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:31, skipping insertion in model container [2021-11-20 23:32:31,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:31" (1/1) ... [2021-11-20 23:32:31,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:32:31,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:32:31,919 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44118,44131] [2021-11-20 23:32:31,933 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44660,44673] [2021-11-20 23:32:32,047 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56247,56260] [2021-11-20 23:32:32,055 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56368,56381] [2021-11-20 23:32:32,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:32,086 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:32:32,121 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44118,44131] [2021-11-20 23:32:32,123 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[44660,44673] [2021-11-20 23:32:32,235 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56247,56260] [2021-11-20 23:32:32,236 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_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i[56368,56381] [2021-11-20 23:32:32,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:32,336 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:32:32,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32 WrapperNode [2021-11-20 23:32:32,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:32,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:32,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:32:32,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:32:32,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,481 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1209 [2021-11-20 23:32:32,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:32,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:32:32,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:32:32,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:32:32,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:32:32,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:32:32,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:32:32,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:32:32,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (1/1) ... [2021-11-20 23:32:32,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:32,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:32,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:32:32,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:32:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:32:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-20 23:32:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-20 23:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:32:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-20 23:32:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-20 23:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-20 23:32:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-20 23:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:32:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:32:33,050 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:32:33,052 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:32:34,181 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:32:34,599 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:32:34,599 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-20 23:32:34,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:34 BoogieIcfgContainer [2021-11-20 23:32:34,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:32:34,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:32:34,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:32:34,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:32:34,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:32:31" (1/3) ... [2021-11-20 23:32:34,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e14826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:34, skipping insertion in model container [2021-11-20 23:32:34,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:32" (2/3) ... [2021-11-20 23:32:34,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e14826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:34, skipping insertion in model container [2021-11-20 23:32:34,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:34" (3/3) ... [2021-11-20 23:32:34,618 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2021-11-20 23:32:34,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:32:34,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-20 23:32:34,693 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:32:34,703 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:32:34,703 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-20 23:32:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 156 states have internal predecessors, (247), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 23:32:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 23:32:34,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:34,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 23:32:34,737 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:34,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash 31387996, now seen corresponding path program 1 times [2021-11-20 23:32:34,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:34,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320268273] [2021-11-20 23:32:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:34,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:34,863 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:34,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044726429] [2021-11-20 23:32:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:34,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:34,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:34,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:34,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:32:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:35,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 23:32:35,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:35,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-20 23:32:35,237 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-20 23:32:35,237 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2021-11-20 23:32:35,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 50 treesize of output 49 [2021-11-20 23:32:35,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:32:35,513 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 7 treesize of output 3 [2021-11-20 23:32:39,636 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:32:39,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 38 [2021-11-20 23:32:39,655 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:32:39,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2021-11-20 23:32:39,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 10 [2021-11-20 23:32:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:39,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:39,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:39,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320268273] [2021-11-20 23:32:39,702 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:39,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044726429] [2021-11-20 23:32:39,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044726429] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:39,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:39,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:39,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332166601] [2021-11-20 23:32:39,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:39,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:39,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:39,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:39,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:39,755 INFO L87 Difference]: Start difference. First operand has 176 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 156 states have internal predecessors, (247), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:41,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:41,009 INFO L93 Difference]: Finished difference Result 354 states and 563 transitions. [2021-11-20 23:32:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:32:41,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-11-20 23:32:41,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:41,022 INFO L225 Difference]: With dead ends: 354 [2021-11-20 23:32:41,022 INFO L226 Difference]: Without dead ends: 178 [2021-11-20 23:32:41,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:41,029 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 2 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:41,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 481 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 65 Unchecked, 1.2s Time] [2021-11-20 23:32:41,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-20 23:32:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2021-11-20 23:32:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 158 states have internal predecessors, (179), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-20 23:32:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 209 transitions. [2021-11-20 23:32:41,079 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 209 transitions. Word has length 4 [2021-11-20 23:32:41,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:41,079 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 209 transitions. [2021-11-20 23:32:41,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 209 transitions. [2021-11-20 23:32:41,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:32:41,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:41,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:41,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:41,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-20 23:32:41,283 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:41,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:41,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2011390594, now seen corresponding path program 1 times [2021-11-20 23:32:41,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:41,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502443300] [2021-11-20 23:32:41,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:41,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:41,312 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:41,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052995944] [2021-11-20 23:32:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:41,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:41,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:41,314 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:41,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:32:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:41,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:32:41,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:41,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:41,649 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:41,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502443300] [2021-11-20 23:32:41,649 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:41,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052995944] [2021-11-20 23:32:41,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052995944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:41,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:41,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:41,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979093040] [2021-11-20 23:32:41,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:41,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:41,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:41,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:41,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:41,653 INFO L87 Difference]: Start difference. First operand 177 states and 209 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:43,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:32:44,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:44,340 INFO L93 Difference]: Finished difference Result 311 states and 367 transitions. [2021-11-20 23:32:44,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:32:44,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:32:44,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:44,348 INFO L225 Difference]: With dead ends: 311 [2021-11-20 23:32:44,349 INFO L226 Difference]: Without dead ends: 309 [2021-11-20 23:32:44,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:44,351 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 139 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:44,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 528 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-20 23:32:44,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-20 23:32:44,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 299. [2021-11-20 23:32:44,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 255 states have (on average 1.2352941176470589) internal successors, (315), 270 states have internal predecessors, (315), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-20 23:32:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 363 transitions. [2021-11-20 23:32:44,381 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 363 transitions. Word has length 18 [2021-11-20 23:32:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:44,382 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 363 transitions. [2021-11-20 23:32:44,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 363 transitions. [2021-11-20 23:32:44,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 23:32:44,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:44,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:44,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:44,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:44,599 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:44,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:44,599 INFO L85 PathProgramCache]: Analyzing trace with hash 2071401060, now seen corresponding path program 1 times [2021-11-20 23:32:44,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:44,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764222435] [2021-11-20 23:32:44,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:44,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:44,637 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:44,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157868420] [2021-11-20 23:32:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:44,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:44,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:44,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:44,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:32:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:44,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:32:44,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:44,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:44,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:44,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764222435] [2021-11-20 23:32:44,931 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:44,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157868420] [2021-11-20 23:32:44,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157868420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:44,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:44,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:44,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136278543] [2021-11-20 23:32:44,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:44,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:44,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:44,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:44,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:44,941 INFO L87 Difference]: Start difference. First operand 299 states and 363 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:46,327 INFO L93 Difference]: Finished difference Result 537 states and 655 transitions. [2021-11-20 23:32:46,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:32:46,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 23:32:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:46,337 INFO L225 Difference]: With dead ends: 537 [2021-11-20 23:32:46,337 INFO L226 Difference]: Without dead ends: 535 [2021-11-20 23:32:46,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:46,339 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 174 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:46,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 535 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 23:32:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-20 23:32:46,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 524. [2021-11-20 23:32:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 459 states have (on average 1.2352941176470589) internal successors, (567), 477 states have internal predecessors, (567), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2021-11-20 23:32:46,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 652 transitions. [2021-11-20 23:32:46,384 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 652 transitions. Word has length 19 [2021-11-20 23:32:46,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:46,385 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 652 transitions. [2021-11-20 23:32:46,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:46,385 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 652 transitions. [2021-11-20 23:32:46,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:32:46,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:46,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:46,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:46,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:46,596 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:46,598 INFO L85 PathProgramCache]: Analyzing trace with hash 949063289, now seen corresponding path program 1 times [2021-11-20 23:32:46,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:46,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439377050] [2021-11-20 23:32:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:46,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:46,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:46,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439377050] [2021-11-20 23:32:46,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439377050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:46,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:46,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:32:46,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054906402] [2021-11-20 23:32:46,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:46,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:46,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:46,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:46,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:46,784 INFO L87 Difference]: Start difference. First operand 524 states and 652 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:48,375 INFO L93 Difference]: Finished difference Result 871 states and 1093 transitions. [2021-11-20 23:32:48,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:32:48,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-11-20 23:32:48,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:48,390 INFO L225 Difference]: With dead ends: 871 [2021-11-20 23:32:48,390 INFO L226 Difference]: Without dead ends: 702 [2021-11-20 23:32:48,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:48,393 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 67 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:48,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 489 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:32:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-11-20 23:32:48,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 524. [2021-11-20 23:32:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 459 states have (on average 1.233115468409586) internal successors, (566), 477 states have internal predecessors, (566), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2021-11-20 23:32:48,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 651 transitions. [2021-11-20 23:32:48,436 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 651 transitions. Word has length 24 [2021-11-20 23:32:48,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:48,437 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 651 transitions. [2021-11-20 23:32:48,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 651 transitions. [2021-11-20 23:32:48,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 23:32:48,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:48,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:48,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:32:48,439 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:48,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:48,440 INFO L85 PathProgramCache]: Analyzing trace with hash -12375280, now seen corresponding path program 1 times [2021-11-20 23:32:48,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:48,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629123784] [2021-11-20 23:32:48,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:48,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:48,462 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:48,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255671825] [2021-11-20 23:32:48,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:48,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:48,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:48,469 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:48,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:32:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:48,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:32:48,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:48,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:48,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:48,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629123784] [2021-11-20 23:32:48,812 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:48,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255671825] [2021-11-20 23:32:48,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255671825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:48,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:48,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:32:48,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247590088] [2021-11-20 23:32:48,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:48,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:48,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:48,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:48,814 INFO L87 Difference]: Start difference. First operand 524 states and 651 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:32:49,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:49,875 INFO L93 Difference]: Finished difference Result 550 states and 671 transitions. [2021-11-20 23:32:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:49,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-20 23:32:49,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:49,884 INFO L225 Difference]: With dead ends: 550 [2021-11-20 23:32:49,885 INFO L226 Difference]: Without dead ends: 549 [2021-11-20 23:32:49,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:49,886 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 144 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:49,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 359 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:32:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-11-20 23:32:49,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 539. [2021-11-20 23:32:49,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 469 states have (on average 1.2302771855010661) internal successors, (577), 488 states have internal predecessors, (577), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2021-11-20 23:32:49,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 668 transitions. [2021-11-20 23:32:49,927 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 668 transitions. Word has length 27 [2021-11-20 23:32:49,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:49,927 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 668 transitions. [2021-11-20 23:32:49,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:32:49,928 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 668 transitions. [2021-11-20 23:32:49,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:32:49,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:49,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:49,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:50,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:50,143 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:50,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:50,143 INFO L85 PathProgramCache]: Analyzing trace with hash -383633619, now seen corresponding path program 1 times [2021-11-20 23:32:50,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:50,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963848690] [2021-11-20 23:32:50,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:50,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:50,179 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:50,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334835208] [2021-11-20 23:32:50,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:50,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:50,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:50,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:50,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:32:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:50,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:32:50,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:50,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:50,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:50,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963848690] [2021-11-20 23:32:50,488 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:50,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334835208] [2021-11-20 23:32:50,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334835208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:50,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:50,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:32:50,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288069498] [2021-11-20 23:32:50,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:50,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:50,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:50,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:50,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:50,491 INFO L87 Difference]: Start difference. First operand 539 states and 668 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:32:51,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:51,347 INFO L93 Difference]: Finished difference Result 539 states and 668 transitions. [2021-11-20 23:32:51,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:51,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-20 23:32:51,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:51,356 INFO L225 Difference]: With dead ends: 539 [2021-11-20 23:32:51,356 INFO L226 Difference]: Without dead ends: 538 [2021-11-20 23:32:51,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:51,358 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:51,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 172 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:32:51,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-20 23:32:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-11-20 23:32:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 469 states have (on average 1.2260127931769722) internal successors, (575), 487 states have internal predecessors, (575), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2021-11-20 23:32:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 666 transitions. [2021-11-20 23:32:51,401 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 666 transitions. Word has length 28 [2021-11-20 23:32:51,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:51,401 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 666 transitions. [2021-11-20 23:32:51,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:32:51,402 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 666 transitions. [2021-11-20 23:32:51,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:32:51,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:51,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:51,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:51,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 23:32:51,623 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:51,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:51,623 INFO L85 PathProgramCache]: Analyzing trace with hash -259574453, now seen corresponding path program 1 times [2021-11-20 23:32:51,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:51,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200308551] [2021-11-20 23:32:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:51,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:51,638 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:51,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703075804] [2021-11-20 23:32:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:51,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:51,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:51,649 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:51,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 23:32:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:51,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:32:51,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:51,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:51,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:51,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200308551] [2021-11-20 23:32:51,934 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:51,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703075804] [2021-11-20 23:32:51,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703075804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:51,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:51,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:51,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773129058] [2021-11-20 23:32:51,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:51,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:51,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:51,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:51,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:51,937 INFO L87 Difference]: Start difference. First operand 538 states and 666 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:52,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:52,724 INFO L93 Difference]: Finished difference Result 1000 states and 1234 transitions. [2021-11-20 23:32:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:52,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2021-11-20 23:32:52,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:52,731 INFO L225 Difference]: With dead ends: 1000 [2021-11-20 23:32:52,732 INFO L226 Difference]: Without dead ends: 467 [2021-11-20 23:32:52,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:52,734 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:52,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 332 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:32:52,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-11-20 23:32:52,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 415. [2021-11-20 23:32:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 363 states have (on average 1.2148760330578512) internal successors, (441), 379 states have internal predecessors, (441), 30 states have call successors, (30), 11 states have call predecessors, (30), 9 states have return successors, (33), 26 states have call predecessors, (33), 30 states have call successors, (33) [2021-11-20 23:32:52,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 504 transitions. [2021-11-20 23:32:52,757 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 504 transitions. Word has length 28 [2021-11-20 23:32:52,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:52,757 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 504 transitions. [2021-11-20 23:32:52,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:52,758 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 504 transitions. [2021-11-20 23:32:52,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 23:32:52,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:52,759 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:52,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:52,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:52,983 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:52,983 INFO L85 PathProgramCache]: Analyzing trace with hash 107922983, now seen corresponding path program 1 times [2021-11-20 23:32:52,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:52,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915119309] [2021-11-20 23:32:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:52,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:53,004 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:53,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641040868] [2021-11-20 23:32:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:53,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:53,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:53,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:53,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 23:32:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:53,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:32:53,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:53,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:53,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:32:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:53,562 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:53,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915119309] [2021-11-20 23:32:53,563 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:53,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641040868] [2021-11-20 23:32:53,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641040868] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:32:53,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [967196885] [2021-11-20 23:32:53,582 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-20 23:32:53,583 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:32:53,587 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:32:53,591 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:32:53,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:32:53,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:53,658 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:32:53,677 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-20 23:32:53,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-20 23:32:53,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 71 treesize of output 70 [2021-11-20 23:32:53,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:53,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 23:32:53,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2021-11-20 23:32:53,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:53,778 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 37 treesize of output 27 [2021-11-20 23:32:53,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:32:53,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:32:53,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:53,881 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:32:53,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-20 23:32:53,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:53,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:53,962 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:32:53,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:32:54,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,208 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-20 23:32:54,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-20 23:32:54,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:32:54,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,298 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-20 23:32:54,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-20 23:32:54,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 43 treesize of output 45 [2021-11-20 23:32:54,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 40 treesize of output 39 [2021-11-20 23:32:54,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:32:54,789 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 19 treesize of output 1 [2021-11-20 23:32:54,813 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 19 treesize of output 1 [2021-11-20 23:32:54,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 77 treesize of output 69 [2021-11-20 23:32:54,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:54,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-20 23:32:57,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:32:57,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 95 treesize of output 89 [2021-11-20 23:32:57,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 88 treesize of output 82 [2021-11-20 23:32:57,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-20 23:32:57,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:32:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:32:57,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:32:57,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:32:57,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,911 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:32:57,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-20 23:32:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,982 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:32:57,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 103 treesize of output 97 [2021-11-20 23:32:58,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-20 23:32:58,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-20 23:32:58,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:32:58,478 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 25 treesize of output 1 [2021-11-20 23:32:58,483 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 25 treesize of output 1 [2021-11-20 23:32:58,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:32:58,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-20 23:32:58,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,621 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 28 treesize of output 10 [2021-11-20 23:32:58,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,672 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-20 23:32:58,672 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 76 treesize of output 70 [2021-11-20 23:32:58,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 57 treesize of output 43 [2021-11-20 23:32:58,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2021-11-20 23:32:58,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,785 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-20 23:32:58,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:32:58,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:32:58,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,891 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-20 23:32:58,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-20 23:32:59,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,280 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:32:59,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:32:59,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,328 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-20 23:32:59,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:32:59,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,347 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 28 treesize of output 10 [2021-11-20 23:32:59,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,369 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:32:59,369 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 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:32:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 30 [2021-11-20 23:32:59,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2021-11-20 23:32:59,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:59,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:32:59,719 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-20 23:32:59,720 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 306 treesize of output 272 [2021-11-20 23:32:59,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 287 treesize of output 283 [2021-11-20 23:32:59,754 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 328 treesize of output 324 [2021-11-20 23:33:01,551 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-20 23:33:02,607 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-20 23:33:03,655 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:33:06,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [967196885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:06,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:33:06,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-20 23:33:06,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924900293] [2021-11-20 23:33:06,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:06,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-20 23:33:06,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:06,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-20 23:33:06,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:33:06,895 INFO L87 Difference]: Start difference. First operand 415 states and 504 transitions. Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:33:10,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:11,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:11,107 INFO L93 Difference]: Finished difference Result 819 states and 998 transitions. [2021-11-20 23:33:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 23:33:11,109 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-20 23:33:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:11,112 INFO L225 Difference]: With dead ends: 819 [2021-11-20 23:33:11,112 INFO L226 Difference]: Without dead ends: 412 [2021-11-20 23:33:11,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:33:11,115 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 14 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 442 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:11,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1113 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 435 Invalid, 1 Unknown, 442 Unchecked, 4.1s Time] [2021-11-20 23:33:11,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-20 23:33:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-11-20 23:33:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 360 states have (on average 1.211111111111111) internal successors, (436), 375 states have internal predecessors, (436), 30 states have call successors, (30), 11 states have call predecessors, (30), 9 states have return successors, (33), 26 states have call predecessors, (33), 30 states have call successors, (33) [2021-11-20 23:33:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 499 transitions. [2021-11-20 23:33:11,140 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 499 transitions. Word has length 34 [2021-11-20 23:33:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:11,141 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 499 transitions. [2021-11-20 23:33:11,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:33:11,141 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 499 transitions. [2021-11-20 23:33:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 23:33:11,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:11,142 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:11,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:11,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:11,359 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:33:11,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:11,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1157443849, now seen corresponding path program 1 times [2021-11-20 23:33:11,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:11,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558799430] [2021-11-20 23:33:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:11,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:11,388 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:33:11,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376387776] [2021-11-20 23:33:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:11,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:11,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:11,391 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:11,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 23:33:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:11,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:33:11,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:11,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:11,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:33:11,691 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:11,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558799430] [2021-11-20 23:33:11,692 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:11,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376387776] [2021-11-20 23:33:11,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376387776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:11,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:11,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:11,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563053762] [2021-11-20 23:33:11,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:11,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:11,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:11,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:11,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:11,694 INFO L87 Difference]: Start difference. First operand 412 states and 499 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:33:13,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:14,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:14,311 INFO L93 Difference]: Finished difference Result 760 states and 929 transitions. [2021-11-20 23:33:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:33:14,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2021-11-20 23:33:14,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:14,319 INFO L225 Difference]: With dead ends: 760 [2021-11-20 23:33:14,320 INFO L226 Difference]: Without dead ends: 758 [2021-11-20 23:33:14,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:14,321 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 184 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:14,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 798 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 23:33:14,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-11-20 23:33:14,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 746. [2021-11-20 23:33:14,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 668 states have (on average 1.2110778443113772) internal successors, (809), 684 states have internal predecessors, (809), 51 states have call successors, (51), 18 states have call predecessors, (51), 14 states have return successors, (62), 43 states have call predecessors, (62), 51 states have call successors, (62) [2021-11-20 23:33:14,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 922 transitions. [2021-11-20 23:33:14,361 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 922 transitions. Word has length 37 [2021-11-20 23:33:14,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:14,361 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 922 transitions. [2021-11-20 23:33:14,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:33:14,362 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 922 transitions. [2021-11-20 23:33:14,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 23:33:14,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:14,363 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-20 23:33:14,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:14,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:14,583 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:33:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1785745275, now seen corresponding path program 1 times [2021-11-20 23:33:14,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:14,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740429969] [2021-11-20 23:33:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:14,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:14,609 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:33:14,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347905217] [2021-11-20 23:33:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:14,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:14,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:14,622 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:14,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 23:33:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:14,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:33:14,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:14,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:33:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 23:33:15,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:15,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740429969] [2021-11-20 23:33:15,143 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:15,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347905217] [2021-11-20 23:33:15,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347905217] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:33:15,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1935840065] [2021-11-20 23:33:15,147 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-20 23:33:15,147 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:33:15,147 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:33:15,147 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:33:15,148 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:33:15,177 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 [2021-11-20 23:33:15,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:33:15,223 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-20 23:33:15,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-20 23:33:15,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 71 treesize of output 70 [2021-11-20 23:33:15,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,265 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 23 treesize of output 17 [2021-11-20 23:33:15,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-20 23:33:15,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 20 treesize of output 18 [2021-11-20 23:33:15,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,394 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:33:15,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:33:15,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-20 23:33:15,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:15,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:15,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,647 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-20 23:33:15,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-20 23:33:15,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,709 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:33:15,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 43 treesize of output 45 [2021-11-20 23:33:15,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 40 treesize of output 39 [2021-11-20 23:33:15,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:15,794 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-20 23:33:15,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-20 23:33:15,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:16,062 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 19 treesize of output 1 [2021-11-20 23:33:16,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:16,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:16,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:16,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:16,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:16,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 77 treesize of output 69 [2021-11-20 23:33:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:16,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-20 23:33:16,277 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 19 treesize of output 1 [2021-11-20 23:33:18,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:18,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 95 treesize of output 89 [2021-11-20 23:33:18,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 88 treesize of output 82 [2021-11-20 23:33:18,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-20 23:33:18,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:33:18,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:18,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:18,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,600 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:18,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-20 23:33:18,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,670 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:18,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 103 treesize of output 97 [2021-11-20 23:33:18,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-20 23:33:18,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:18,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-20 23:33:19,195 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 25 treesize of output 1 [2021-11-20 23:33:19,199 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 25 treesize of output 1 [2021-11-20 23:33:19,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:19,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:33:19,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-20 23:33:19,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,407 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 28 treesize of output 10 [2021-11-20 23:33:19,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,423 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 28 treesize of output 10 [2021-11-20 23:33:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,472 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-20 23:33:19,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:19,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,540 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-20 23:33:19,540 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 76 treesize of output 70 [2021-11-20 23:33:19,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 57 treesize of output 43 [2021-11-20 23:33:19,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2021-11-20 23:33:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:19,647 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-20 23:33:19,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-20 23:33:20,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,022 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 28 treesize of output 10 [2021-11-20 23:33:20,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,053 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 28 treesize of output 10 [2021-11-20 23:33:20,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,129 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:33:20,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:33:20,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,216 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-20 23:33:20,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:20,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,252 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:20,252 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 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:33:20,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 36 [2021-11-20 23:33:20,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:20,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 31 treesize of output 17 [2021-11-20 23:33:20,478 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 234 treesize of output 230 [2021-11-20 23:33:20,487 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 257 treesize of output 253 [2021-11-20 23:33:20,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:22,007 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-20 23:33:22,981 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-20 23:33:24,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,188 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:24,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-20 23:33:24,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,204 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:24,204 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 3 case distinctions, treesize of input 172 treesize of output 156 [2021-11-20 23:33:24,234 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:33:24,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 147 treesize of output 139 [2021-11-20 23:33:24,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,747 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:24,748 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 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-20 23:33:24,799 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:33:24,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 172 treesize of output 164 [2021-11-20 23:33:24,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:24,817 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:24,818 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 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-20 23:33:25,908 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:33:25,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 197 treesize of output 189 [2021-11-20 23:33:25,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:25,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:25,928 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:25,928 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 3 case distinctions, treesize of input 189 treesize of output 173 [2021-11-20 23:33:25,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:25,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:25,946 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:25,947 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 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-20 23:33:26,116 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-20 23:33:26,309 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:33:29,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1935840065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:29,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:33:29,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-20 23:33:29,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021244411] [2021-11-20 23:33:29,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:29,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 23:33:29,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:29,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 23:33:29,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-20 23:33:29,915 INFO L87 Difference]: Start difference. First operand 746 states and 922 transitions. Second operand has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 23:33:35,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:38,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:40,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:40,442 INFO L93 Difference]: Finished difference Result 1464 states and 1817 transitions. [2021-11-20 23:33:40,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 23:33:40,442 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2021-11-20 23:33:40,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:40,446 INFO L225 Difference]: With dead ends: 1464 [2021-11-20 23:33:40,447 INFO L226 Difference]: Without dead ends: 748 [2021-11-20 23:33:40,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-20 23:33:40,450 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 12 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 866 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:40,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 2011 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 935 Invalid, 1 Unknown, 866 Unchecked, 10.5s Time] [2021-11-20 23:33:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-11-20 23:33:40,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2021-11-20 23:33:40,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 670 states have (on average 1.2104477611940299) internal successors, (811), 686 states have internal predecessors, (811), 51 states have call successors, (51), 18 states have call predecessors, (51), 14 states have return successors, (62), 43 states have call predecessors, (62), 51 states have call successors, (62) [2021-11-20 23:33:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 924 transitions. [2021-11-20 23:33:40,489 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 924 transitions. Word has length 46 [2021-11-20 23:33:40,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:40,489 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 924 transitions. [2021-11-20 23:33:40,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 23:33:40,490 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 924 transitions. [2021-11-20 23:33:40,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 23:33:40,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:40,491 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-20 23:33:40,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:40,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 23:33:40,706 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:33:40,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash 930438946, now seen corresponding path program 1 times [2021-11-20 23:33:40,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:40,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661950005] [2021-11-20 23:33:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:40,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:40,721 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:33:40,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813365692] [2021-11-20 23:33:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:40,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:40,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:40,729 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:40,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c01c8a55-c41e-41f1-bcbd-e5feba04bf69/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 23:33:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:40,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:33:40,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:33:41,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:33:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 23:33:41,182 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:41,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661950005] [2021-11-20 23:33:41,183 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:41,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813365692] [2021-11-20 23:33:41,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813365692] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:33:41,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1515260063] [2021-11-20 23:33:41,186 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-20 23:33:41,186 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:33:41,187 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:33:41,187 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:33:41,187 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:33:41,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:41,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,250 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:33:41,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-20 23:33:41,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:41,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,308 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:33:41,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:33:41,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-20 23:33:41,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 29 treesize of output 28 [2021-11-20 23:33:41,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,539 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-20 23:33:41,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 43 treesize of output 65 [2021-11-20 23:33:41,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 11 [2021-11-20 23:33:41,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:33:41,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2021-11-20 23:33:41,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,781 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-20 23:33:41,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 46 [2021-11-20 23:33:41,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:41,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:41,893 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-20 23:33:41,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-20 23:33:41,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:42,245 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 19 treesize of output 1 [2021-11-20 23:33:42,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:42,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:42,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:42,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:42,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:42,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 77 treesize of output 69 [2021-11-20 23:33:42,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:42,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-20 23:33:42,387 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 19 treesize of output 1 [2021-11-20 23:33:44,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 95 treesize of output 89 [2021-11-20 23:33:44,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2021-11-20 23:33:44,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 80 treesize of output 72 [2021-11-20 23:33:44,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:33:44,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:44,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:44,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,788 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:44,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-20 23:33:44,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,824 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:44,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 103 treesize of output 97 [2021-11-20 23:33:44,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-20 23:33:44,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-20 23:33:44,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:44,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:45,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:45,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:45,443 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 25 treesize of output 1 [2021-11-20 23:33:45,448 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 25 treesize of output 1 [2021-11-20 23:33:45,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-20 23:33:45,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:33:45,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,598 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-20 23:33:45,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:45,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,621 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 28 treesize of output 10 [2021-11-20 23:33:45,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,637 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 28 treesize of output 10 [2021-11-20 23:33:45,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,703 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:33:45,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:33:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,772 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:45,772 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 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:33:45,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 36 [2021-11-20 23:33:45,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:45,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 31 treesize of output 17 [2021-11-20 23:33:46,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,105 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 28 treesize of output 10 [2021-11-20 23:33:46,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,192 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:33:46,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:33:46,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,237 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 28 treesize of output 10 [2021-11-20 23:33:46,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,272 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:46,272 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 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:33:46,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 30 [2021-11-20 23:33:46,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2021-11-20 23:33:46,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:46,346 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:46,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:46,438 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 26 treesize of output 22 [2021-11-20 23:33:46,600 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 13 treesize of output 9 [2021-11-20 23:33:46,640 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 19 treesize of output 1 [2021-11-20 23:33:47,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:33:47,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:47,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:33:47,260 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-20 23:33:47,261 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 137 treesize of output 136 [2021-11-20 23:33:47,276 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:33:47,276 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 133 treesize of output 132 [2021-11-20 23:33:47,298 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:33:47,298 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 129 treesize of output 128 [2021-11-20 23:33:47,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:47,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:33:47,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:33:47,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-20 23:33:47,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-20 23:33:48,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-20 23:33:48,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-20 23:33:49,736 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:33:49,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1526 treesize of output 1147 [2021-11-20 23:33:49,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:51,315 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:33:51,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1583 treesize of output 1349 [2021-11-20 23:33:52,970 INFO L354 Elim1Store]: treesize reduction 1254, result has 33.9 percent of original size [2021-11-20 23:33:52,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 1415 treesize of output 1461 [2021-11-20 23:33:53,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:53,734 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 23:33:53,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-20 23:33:53,836 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:33:54,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,262 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-20 23:33:54,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-20 23:37:42,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:42,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:04,049 WARN L227 SmtUtils]: Spent 21.61s on a formula simplification. DAG size of input: 167 DAG size of output: 89 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:38:04,049 INFO L354 Elim1Store]: treesize reduction 838, result has 27.9 percent of original size [2021-11-20 23:38:04,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 3643 treesize of output 3482 [2021-11-20 23:43:00,197 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-11-20 23:43:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:43:00,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:44:37,013 WARN L227 SmtUtils]: Spent 1.61m on a formula simplification. DAG size of input: 94 DAG size of output: 70 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:44:37,014 INFO L354 Elim1Store]: treesize reduction 120, result has 64.0 percent of original size [2021-11-20 23:44:37,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 8688 treesize of output 8810