./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.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_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/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_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/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_679114d2-756f-4cc2-8dbd-bd661560e18d/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 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:14:15,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:14:15,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:14:15,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:14:15,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:14:15,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:14:15,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:14:15,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:14:15,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:14:15,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:14:15,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:14:15,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:14:15,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:14:15,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:14:15,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:14:16,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:14:16,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:14:16,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:14:16,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:14:16,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:14:16,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:14:16,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:14:16,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:14:16,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:14:16,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:14:16,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:14:16,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:14:16,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:14:16,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:14:16,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:14:16,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:14:16,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:14:16,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:14:16,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:14:16,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:14:16,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:14:16,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:14:16,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:14:16,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:14:16,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:14:16,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:14:16,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-20 23:14:16,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:14:16,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:14:16,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:14:16,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:14:16,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:14:16,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:14:16,095 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:14:16,095 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:14:16,095 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:14:16,096 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:14:16,097 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:14:16,097 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:14:16,097 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:14:16,097 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:14:16,098 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:14:16,098 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:14:16,098 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:14:16,098 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:14:16,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:14:16,100 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:14:16,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 23:14:16,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:14:16,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:14:16,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:14:16,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:14:16,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:14:16,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:14:16,103 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 23:14:16,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:14:16,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:14:16,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:14:16,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:14:16,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:14:16,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:14:16,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:14:16,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:14:16,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:14:16,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:14:16,106 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:14:16,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:14:16,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:14:16,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:14:16,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:14:16,107 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_679114d2-756f-4cc2-8dbd-bd661560e18d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2021-11-20 23:14:16,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:14:16,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:14:16,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:14:16,485 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:14:16,486 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:14:16,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2021-11-20 23:14:16,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/data/4e0bed906/276c87755cf2453aa4ddf53d53755013/FLAGf5e2d40ad [2021-11-20 23:14:17,329 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:14:17,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2021-11-20 23:14:17,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/data/4e0bed906/276c87755cf2453aa4ddf53d53755013/FLAGf5e2d40ad [2021-11-20 23:14:17,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/data/4e0bed906/276c87755cf2453aa4ddf53d53755013 [2021-11-20 23:14:17,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:14:17,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:14:17,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:14:17,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:14:17,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:14:17,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:14:17" (1/1) ... [2021-11-20 23:14:17,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e5e7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:17, skipping insertion in model container [2021-11-20 23:14:17,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:14:17" (1/1) ... [2021-11-20 23:14:17,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:14:17,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:14:18,272 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_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44118,44131] [2021-11-20 23:14:18,289 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_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44660,44673] [2021-11-20 23:14:18,488 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_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56247,56260] [2021-11-20 23:14:18,489 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_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56368,56381] [2021-11-20 23:14:18,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:14:18,519 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:14:18,587 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_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44118,44131] [2021-11-20 23:14:18,590 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_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44660,44673] [2021-11-20 23:14:18,689 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_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56247,56260] [2021-11-20 23:14:18,690 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_679114d2-756f-4cc2-8dbd-bd661560e18d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56368,56381] [2021-11-20 23:14:18,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:14:18,773 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:14:18,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18 WrapperNode [2021-11-20 23:14:18,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:14:18,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:14:18,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:14:18,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:14:18,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:18,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:18,925 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2021-11-20 23:14:18,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:14:18,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:14:18,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:14:18,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:14:18,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:18,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:18,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:18,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:19,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:19,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:19,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:19,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:14:19,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:14:19,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:14:19,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:14:19,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (1/1) ... [2021-11-20 23:14:19,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:14:19,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:19,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:14:19,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:14:19,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:14:19,211 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:14:19,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:14:19,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:14:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-20 23:14:19,212 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-20 23:14:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:14:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:14:19,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:14:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:14:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:14:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:14:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-20 23:14:19,212 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-20 23:14:19,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:14:19,213 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-20 23:14:19,213 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-20 23:14:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:14:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:14:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:14:19,481 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:14:19,484 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:14:20,603 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:14:21,084 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:14:21,084 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-20 23:14:21,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:14:21 BoogieIcfgContainer [2021-11-20 23:14:21,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:14:21,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:14:21,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:14:21,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:14:21,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:14:17" (1/3) ... [2021-11-20 23:14:21,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f3624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:14:21, skipping insertion in model container [2021-11-20 23:14:21,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:18" (2/3) ... [2021-11-20 23:14:21,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f3624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:14:21, skipping insertion in model container [2021-11-20 23:14:21,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:14:21" (3/3) ... [2021-11-20 23:14:21,103 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2021-11-20 23:14:21,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:14:21,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-20 23:14:21,182 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:14:21,194 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 23:14:21,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-20 23:14:21,221 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 23:14:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 23:14:21,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:21,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 23:14:21,225 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 23:14:21,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:21,230 INFO L85 PathProgramCache]: Analyzing trace with hash 27392344, now seen corresponding path program 1 times [2021-11-20 23:14:21,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:21,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222418716] [2021-11-20 23:14:21,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:21,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:21,365 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:21,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312414837] [2021-11-20 23:14:21,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:21,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:21,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:21,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:21,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:14:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:21,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 23:14:21,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:21,692 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-20 23:14:21,694 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 23:14:21,707 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 23:14:21,824 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 23:14:21,925 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:14:21,926 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 26 treesize of output 22 [2021-11-20 23:14:34,083 WARN L227 SmtUtils]: Spent 12.10s on a formula simplification. DAG size of input: 24 DAG size of output: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 23:14:34,198 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:14:34,199 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 48 treesize of output 46 [2021-11-20 23:14:34,241 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 23:14:34,256 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 23:14:34,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:34,256 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:34,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222418716] [2021-11-20 23:14:34,257 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:34,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312414837] [2021-11-20 23:14:34,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312414837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:34,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:34,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:14:34,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589448178] [2021-11-20 23:14:34,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:34,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:34,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:34,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:34,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:34,308 INFO L87 Difference]: Start difference. First operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) 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 23:14:35,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:35,110 INFO L93 Difference]: Finished difference Result 318 states and 501 transitions. [2021-11-20 23:14:35,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:14:35,117 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 23:14:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:35,126 INFO L225 Difference]: With dead ends: 318 [2021-11-20 23:14:35,127 INFO L226 Difference]: Without dead ends: 154 [2021-11-20 23:14:35,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:35,134 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 2 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:35,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 434 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 55 Unchecked, 0.7s Time] [2021-11-20 23:14:35,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-20 23:14:35,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2021-11-20 23:14:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 125 states have (on average 1.256) internal successors, (157), 139 states have internal predecessors, (157), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-20 23:14:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2021-11-20 23:14:35,186 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2021-11-20 23:14:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:35,187 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2021-11-20 23:14:35,187 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 23:14:35,187 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2021-11-20 23:14:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:14:35,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:35,189 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 23:14:35,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 23:14:35,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-20 23:14:35,416 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 23:14:35,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:35,417 INFO L85 PathProgramCache]: Analyzing trace with hash -646465482, now seen corresponding path program 1 times [2021-11-20 23:14:35,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:35,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616173660] [2021-11-20 23:14:35,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:35,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:35,462 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:35,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88545243] [2021-11-20 23:14:35,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:35,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:35,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:35,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:35,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:14:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:35,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:14:35,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:35,741 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 23:14:35,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:35,741 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:35,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616173660] [2021-11-20 23:14:35,742 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:35,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88545243] [2021-11-20 23:14:35,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88545243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:35,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:35,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:14:35,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959154917] [2021-11-20 23:14:35,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:35,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:35,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:35,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:35,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:35,746 INFO L87 Difference]: Start difference. First operand 153 states and 177 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 23:14:38,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:38,054 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2021-11-20 23:14:38,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:14:38,057 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 23:14:38,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:38,061 INFO L225 Difference]: With dead ends: 261 [2021-11-20 23:14:38,062 INFO L226 Difference]: Without dead ends: 259 [2021-11-20 23:14:38,062 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 23:14:38,064 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 106 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:38,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 443 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:14:38,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-20 23:14:38,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2021-11-20 23:14:38,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.25) internal successors, (270), 231 states have internal predecessors, (270), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 23:14:38,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2021-11-20 23:14:38,092 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2021-11-20 23:14:38,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:38,092 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2021-11-20 23:14:38,093 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 23:14:38,093 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2021-11-20 23:14:38,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 23:14:38,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:38,094 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 23:14:38,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:38,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:38,300 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 23:14:38,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:38,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1434406572, now seen corresponding path program 1 times [2021-11-20 23:14:38,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:38,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213435504] [2021-11-20 23:14:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:38,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:38,324 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:38,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045012492] [2021-11-20 23:14:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:38,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:38,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:38,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:38,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:14:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:38,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:14:38,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:38,594 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 23:14:38,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:38,595 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:38,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213435504] [2021-11-20 23:14:38,595 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:38,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045012492] [2021-11-20 23:14:38,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045012492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:38,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:38,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:14:38,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034064559] [2021-11-20 23:14:38,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:38,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:38,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:38,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:38,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:38,599 INFO L87 Difference]: Start difference. First operand 249 states and 298 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 23:14:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:39,659 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2021-11-20 23:14:39,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:14:39,664 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 23:14:39,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:39,668 INFO L225 Difference]: With dead ends: 441 [2021-11-20 23:14:39,668 INFO L226 Difference]: Without dead ends: 439 [2021-11-20 23:14:39,669 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 23:14:39,670 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:39,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:14:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-20 23:14:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2021-11-20 23:14:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.25) internal successors, (480), 400 states have internal predecessors, (480), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-20 23:14:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2021-11-20 23:14:39,714 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2021-11-20 23:14:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:39,714 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2021-11-20 23:14:39,715 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 23:14:39,715 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2021-11-20 23:14:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:14:39,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:39,717 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 23:14:39,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-20 23:14:39,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:39,932 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 23:14:39,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:39,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1558573003, now seen corresponding path program 1 times [2021-11-20 23:14:39,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:39,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256775785] [2021-11-20 23:14:39,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:39,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:40,034 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 23:14:40,034 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:40,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256775785] [2021-11-20 23:14:40,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256775785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:40,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:40,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:14:40,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855662012] [2021-11-20 23:14:40,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:40,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:14:40,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:14:40,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:14:40,037 INFO L87 Difference]: Start difference. First operand 428 states and 529 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 23:14:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:41,411 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2021-11-20 23:14:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:14:41,415 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 23:14:41,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:41,419 INFO L225 Difference]: With dead ends: 682 [2021-11-20 23:14:41,420 INFO L226 Difference]: Without dead ends: 562 [2021-11-20 23:14:41,421 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 23:14:41,423 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:41,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:14:41,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-20 23:14:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2021-11-20 23:14:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 400 states have internal predecessors, (479), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-20 23:14:41,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2021-11-20 23:14:41,463 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2021-11-20 23:14:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:41,464 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2021-11-20 23:14:41,464 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 23:14:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2021-11-20 23:14:41,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 23:14:41,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:41,465 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 23:14:41,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:14:41,466 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 23:14:41,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:41,467 INFO L85 PathProgramCache]: Analyzing trace with hash -2115465486, now seen corresponding path program 1 times [2021-11-20 23:14:41,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:41,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911118708] [2021-11-20 23:14:41,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:41,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:41,484 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:41,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553086059] [2021-11-20 23:14:41,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:41,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:41,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:41,488 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:41,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:14:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:41,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:14:41,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:41,769 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 23:14:41,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:41,769 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:41,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911118708] [2021-11-20 23:14:41,770 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:41,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553086059] [2021-11-20 23:14:41,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553086059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:41,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:41,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:14:41,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460736064] [2021-11-20 23:14:41,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:41,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:14:41,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:41,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:14:41,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:41,772 INFO L87 Difference]: Start difference. First operand 428 states and 528 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 23:14:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:43,103 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2021-11-20 23:14:43,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:14:43,107 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 23:14:43,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:43,111 INFO L225 Difference]: With dead ends: 454 [2021-11-20 23:14:43,111 INFO L226 Difference]: Without dead ends: 453 [2021-11-20 23:14:43,112 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 23:14:43,113 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:43,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 304 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:14:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-20 23:14:43,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2021-11-20 23:14:43,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 394 states have (on average 1.2436548223350254) internal successors, (490), 411 states have internal predecessors, (490), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-20 23:14:43,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2021-11-20 23:14:43,144 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2021-11-20 23:14:43,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:43,145 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2021-11-20 23:14:43,145 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 23:14:43,145 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2021-11-20 23:14:43,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:14:43,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:43,147 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 23:14:43,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:43,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:43,360 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 23:14:43,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:43,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1154920565, now seen corresponding path program 1 times [2021-11-20 23:14:43,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:43,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004504379] [2021-11-20 23:14:43,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:43,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:43,379 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:43,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643166897] [2021-11-20 23:14:43,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:43,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:43,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:43,383 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:43,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:14:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:43,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:14:43,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:43,673 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 23:14:43,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:43,674 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:43,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004504379] [2021-11-20 23:14:43,674 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:43,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643166897] [2021-11-20 23:14:43,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643166897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:43,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:43,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:14:43,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215415460] [2021-11-20 23:14:43,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:43,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:14:43,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:43,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:14:43,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:43,679 INFO L87 Difference]: Start difference. First operand 443 states and 545 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 23:14:44,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:44,501 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2021-11-20 23:14:44,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:14:44,506 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 23:14:44,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:44,510 INFO L225 Difference]: With dead ends: 443 [2021-11-20 23:14:44,510 INFO L226 Difference]: Without dead ends: 442 [2021-11-20 23:14:44,511 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 23:14:44,512 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:44,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:14:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-20 23:14:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-20 23:14:44,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.2385786802030456) internal successors, (488), 410 states have internal predecessors, (488), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-20 23:14:44,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2021-11-20 23:14:44,538 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2021-11-20 23:14:44,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:44,539 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2021-11-20 23:14:44,539 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 23:14:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2021-11-20 23:14:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:14:44,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:44,540 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 23:14:44,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:44,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:44,752 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 23:14:44,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:44,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1356353724, now seen corresponding path program 1 times [2021-11-20 23:14:44,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:44,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462643532] [2021-11-20 23:14:44,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:44,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:44,780 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:44,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101690736] [2021-11-20 23:14:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:44,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:44,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:44,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:44,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 23:14:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:44,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:14:45,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:45,132 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 23:14:45,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:14:45,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:45,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462643532] [2021-11-20 23:14:45,137 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:45,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101690736] [2021-11-20 23:14:45,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101690736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:45,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:45,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:14:45,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524256766] [2021-11-20 23:14:45,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:45,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:14:45,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:14:45,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:45,140 INFO L87 Difference]: Start difference. First operand 442 states and 543 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 23:14:46,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:46,121 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2021-11-20 23:14:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:14:46,126 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 23:14:46,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:46,129 INFO L225 Difference]: With dead ends: 814 [2021-11-20 23:14:46,129 INFO L226 Difference]: Without dead ends: 377 [2021-11-20 23:14:46,132 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 23:14:46,133 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:46,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 284 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:14:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-20 23:14:46,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-11-20 23:14:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 326 states have (on average 1.2147239263803682) internal successors, (396), 341 states have internal predecessors, (396), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-20 23:14:46,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2021-11-20 23:14:46,154 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2021-11-20 23:14:46,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:46,155 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2021-11-20 23:14:46,155 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 23:14:46,155 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2021-11-20 23:14:46,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 23:14:46,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:46,156 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 23:14:46,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:46,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 23:14:46,384 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 23:14:46,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash 227049609, now seen corresponding path program 1 times [2021-11-20 23:14:46,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:46,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234933487] [2021-11-20 23:14:46,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:46,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:46,406 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:46,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1887116675] [2021-11-20 23:14:46,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:46,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:46,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:46,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:46,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 23:14:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:46,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:14:46,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:46,762 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 23:14:46,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:14:46,982 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 23:14:46,982 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:46,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234933487] [2021-11-20 23:14:46,982 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:46,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887116675] [2021-11-20 23:14:46,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887116675] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:14:46,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1431555348] [2021-11-20 23:14:47,009 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-20 23:14:47,009 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:14:47,014 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:14:47,023 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:14:47,024 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:14:47,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,121 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:14:47,121 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 23:14:47,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,171 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 23:14:47,178 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 23:14:47,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,210 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 23:14:47,239 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 23:14:47,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 23:14:47,435 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 23:14:47,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,511 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-20 23:14:47,511 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 23:14:47,559 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 23:14:47,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,650 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:14:47,653 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2021-11-20 23:14:47,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,879 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-20 23:14:47,879 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 23:14:47,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:47,950 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-20 23:14:47,950 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 23:14:48,028 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 23:14:48,422 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 23:14:48,451 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 23:14:48,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:48,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:48,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:48,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:48,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:48,569 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 23:14:48,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:48,584 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 23:14:50,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 23:14:50,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,826 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 23:14:50,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,845 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 23:14:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,868 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 23:14:50,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:50,888 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 23:14:51,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,019 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 23:14:51,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,171 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 23:14:51,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,277 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 23:14:51,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,375 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:14:51,375 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 23:14:51,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,432 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:14:51,432 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 23:14:51,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,469 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 23:14:51,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:51,503 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 23:14:51,961 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 23:14:51,971 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 23:14:51,977 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 23:14:52,012 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 23:14:52,036 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 23:14:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,162 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 23:14:52,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,221 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-20 23:14:52,221 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 23:14:52,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,275 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 23:14:52,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,357 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-20 23:14:52,357 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 23:14:52,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,388 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 23:14:52,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,466 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-20 23:14:52,466 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 23:14:52,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,887 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:14:52,887 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 23:14:52,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,948 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-20 23:14:52,948 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 23:14:52,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,966 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 23:14:52,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,996 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:14:52,996 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 23:14:53,008 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 23:14:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,041 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 23:14:53,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,147 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 23:14:53,424 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-20 23:14:53,425 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 23:14:53,442 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 23:14:53,459 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 298 treesize of output 294 [2021-11-20 23:14:55,405 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-20 23:14:56,530 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-20 23:14:57,687 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:15:01,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1431555348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:01,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:15:01,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-20 23:15:01,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453211340] [2021-11-20 23:15:01,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:01,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-20 23:15:01,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:01,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-20 23:15:01,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:15:01,155 INFO L87 Difference]: Start difference. First operand 368 states and 441 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 23:15:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:05,119 INFO L93 Difference]: Finished difference Result 725 states and 872 transitions. [2021-11-20 23:15:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 23:15:05,120 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 23:15:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:05,123 INFO L225 Difference]: With dead ends: 725 [2021-11-20 23:15:05,124 INFO L226 Difference]: Without dead ends: 365 [2021-11-20 23:15:05,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:15:05,126 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 446 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:05,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1031 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 448 Invalid, 0 Unknown, 446 Unchecked, 3.9s Time] [2021-11-20 23:15:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-20 23:15:05,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-20 23:15:05,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 323 states have (on average 1.2105263157894737) internal successors, (391), 337 states have internal predecessors, (391), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-20 23:15:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 436 transitions. [2021-11-20 23:15:05,150 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 436 transitions. Word has length 34 [2021-11-20 23:15:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:05,150 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 436 transitions. [2021-11-20 23:15:05,151 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 23:15:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 436 transitions. [2021-11-20 23:15:05,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 23:15:05,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:05,152 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 23:15:05,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 23:15:05,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:15:05,368 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 23:15:05,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:05,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1472683514, now seen corresponding path program 1 times [2021-11-20 23:15:05,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:05,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187972484] [2021-11-20 23:15:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:05,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:05,379 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:15:05,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690373403] [2021-11-20 23:15:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:05,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:15:05,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:15:05,384 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:15:05,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 23:15:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:05,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:15:05,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:15:05,645 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 23:15:05,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:15:05,646 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:05,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187972484] [2021-11-20 23:15:05,646 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:15:05,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690373403] [2021-11-20 23:15:05,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690373403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:05,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:15:05,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:15:05,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673128367] [2021-11-20 23:15:05,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:05,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:15:05,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:15:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:15:05,652 INFO L87 Difference]: Start difference. First operand 365 states and 436 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 23:15:07,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:15:09,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:09,428 INFO L93 Difference]: Finished difference Result 664 states and 802 transitions. [2021-11-20 23:15:09,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:15:09,429 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 23:15:09,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:09,433 INFO L225 Difference]: With dead ends: 664 [2021-11-20 23:15:09,433 INFO L226 Difference]: Without dead ends: 662 [2021-11-20 23:15:09,434 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 23:15:09,434 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 151 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:09,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 678 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-20 23:15:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-20 23:15:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 650. [2021-11-20 23:15:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 593 states have (on average 1.2107925801011805) internal successors, (718), 607 states have internal predecessors, (718), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-20 23:15:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 795 transitions. [2021-11-20 23:15:09,471 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 795 transitions. Word has length 37 [2021-11-20 23:15:09,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:09,471 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 795 transitions. [2021-11-20 23:15:09,472 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 23:15:09,472 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 795 transitions. [2021-11-20 23:15:09,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 23:15:09,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:09,473 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 23:15:09,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 23:15:09,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:15:09,691 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 23:15:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:09,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1507787838, now seen corresponding path program 1 times [2021-11-20 23:15:09,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:09,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708781166] [2021-11-20 23:15:09,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:09,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:09,704 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:15:09,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777263590] [2021-11-20 23:15:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:09,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:15:09,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:15:09,707 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:15:09,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 23:15:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:09,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:15:09,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:15:10,038 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 23:15:10,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:15:10,206 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 23:15:10,206 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:10,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708781166] [2021-11-20 23:15:10,207 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:15:10,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777263590] [2021-11-20 23:15:10,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777263590] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:15:10,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [351088321] [2021-11-20 23:15:10,210 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-20 23:15:10,210 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:15:10,210 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:15:10,211 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:15:10,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:15:10,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,249 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:10,266 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-20 23:15:10,267 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 23:15:10,284 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 23:15:10,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,323 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 23:15:10,329 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 23:15:10,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,370 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 23:15:10,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,475 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:15:10,475 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 23:15:10,513 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 23:15:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,558 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 23:15:10,584 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 23:15:10,752 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 23:15:10,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,826 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-20 23:15:10,826 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 23:15:10,894 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 23:15:10,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:10,951 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-20 23:15:10,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 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 23:15:11,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,018 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 23:15:11,030 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 23:15:11,361 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 23:15:11,381 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 23:15:11,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,425 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 23:15:11,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:11,437 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 23:15:13,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,541 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 23:15:13,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,567 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 23:15:13,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,685 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 23:15:13,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,707 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 23:15:13,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,727 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 23:15:13,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,746 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 23:15:13,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,926 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 23:15:13,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:13,957 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 23:15:14,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,185 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:15:14,185 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 23:15:14,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,241 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:15:14,242 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 23:15:14,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,272 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 23:15:14,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 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 23:15:14,745 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 23:15:14,755 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 23:15:14,760 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 23:15:14,876 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 23:15:14,889 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 23:15:14,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,966 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 23:15:14,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:14,984 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 23:15:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,046 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-20 23:15:15,046 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 23:15:15,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,138 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-20 23:15:15,139 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 23:15:15,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,160 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 23:15:15,183 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 23:15:15,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,233 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-20 23:15:15,233 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 23:15:15,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,577 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 23:15:15,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,599 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 23:15:15,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,661 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:15:15,662 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 23:15:15,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,735 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-20 23:15:15,736 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 23:15:15,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,764 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:15:15,764 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 23:15:15,775 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 23:15:15,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:15,801 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 23:15:15,951 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 23:15:15,965 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 245 treesize of output 241 [2021-11-20 23:15:16,266 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 23:15:17,791 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-20 23:15:18,921 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-20 23:15:20,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:20,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:20,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:20,361 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:20,362 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 23:15:20,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:20,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:20,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:20,375 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:20,376 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 23:15:20,411 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:15:20,411 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 23:15:21,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:21,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:21,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:21,085 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:21,085 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 23:15:21,140 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:15:21,141 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 23:15:21,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:21,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:21,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:21,160 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:21,161 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 23:15:22,170 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:15:22,170 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 23:15:22,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:22,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:22,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:22,192 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:22,192 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 23:15:22,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:22,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:22,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:22,214 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:22,214 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 23:15:22,472 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-20 23:15:22,770 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:15:26,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [351088321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:15:26,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:15:26,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-20 23:15:26,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103069375] [2021-11-20 23:15:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:15:26,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 23:15:26,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:26,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 23:15:26,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-20 23:15:26,751 INFO L87 Difference]: Start difference. First operand 650 states and 795 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 23:15:32,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:15:36,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:15:37,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:37,051 INFO L93 Difference]: Finished difference Result 1272 states and 1563 transitions. [2021-11-20 23:15:37,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 23:15:37,052 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 23:15:37,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:37,061 INFO L225 Difference]: With dead ends: 1272 [2021-11-20 23:15:37,061 INFO L226 Difference]: Without dead ends: 652 [2021-11-20 23:15:37,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-20 23:15:37,065 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 8 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 518 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:37,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1623 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 695 Invalid, 2 Unknown, 518 Unchecked, 10.2s Time] [2021-11-20 23:15:37,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-20 23:15:37,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2021-11-20 23:15:37,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 595 states have (on average 1.2100840336134453) internal successors, (720), 609 states have internal predecessors, (720), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-20 23:15:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 797 transitions. [2021-11-20 23:15:37,117 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 797 transitions. Word has length 46 [2021-11-20 23:15:37,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:37,119 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 797 transitions. [2021-11-20 23:15:37,120 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 23:15:37,120 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 797 transitions. [2021-11-20 23:15:37,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 23:15:37,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:37,121 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 23:15:37,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 23:15:37,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 23:15:37,336 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 23:15:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:37,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2074882063, now seen corresponding path program 1 times [2021-11-20 23:15:37,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:37,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674552530] [2021-11-20 23:15:37,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:37,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:37,351 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:15:37,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871868188] [2021-11-20 23:15:37,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:37,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:15:37,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:15:37,363 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:15:37,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_679114d2-756f-4cc2-8dbd-bd661560e18d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 23:15:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:15:37,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:15:37,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:15:37,658 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 23:15:37,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:15:37,820 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 23:15:37,820 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:15:37,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674552530] [2021-11-20 23:15:37,820 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:15:37,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871868188] [2021-11-20 23:15:37,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871868188] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:15:37,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [691627236] [2021-11-20 23:15:37,824 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-20 23:15:37,824 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:15:37,824 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:15:37,824 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:15:37,825 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:15:37,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:37,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:37,885 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:15:37,885 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 23:15:37,918 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 23:15:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:37,941 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 23:15:37,951 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 23:15:37,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:37,975 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 23:15:38,012 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 23:15:38,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,242 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-20 23:15:38,243 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 23:15:38,303 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 23:15:38,329 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 23:15:38,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,402 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-20 23:15:38,403 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 23:15:38,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 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 23:15:38,500 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 23:15:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,803 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 23:15:38,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:38,812 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 23:15:38,854 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 23:15:38,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:15:41,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,057 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 23:15:41,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,100 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 23:15:41,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,172 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 23:15:41,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,189 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 23:15:41,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,206 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 23:15:41,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,225 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 23:15:41,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,392 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 23:15:41,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,466 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:15:41,467 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 23:15:41,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,528 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:15:41,529 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 23:15:41,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,553 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 23:15:41,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,577 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 23:15:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:41,730 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 23:15:42,086 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 23:15:42,094 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 23:15:42,097 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 23:15:42,183 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 23:15:42,190 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 23:15:42,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,250 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-20 23:15:42,250 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 23:15:42,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,269 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 23:15:42,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,292 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 23:15:42,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,371 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:15:42,371 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 23:15:42,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,456 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:15:42,457 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 23:15:42,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,474 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 23:15:42,485 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 23:15:42,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,887 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 23:15:42,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:42,970 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:15:42,970 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 23:15:43,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,009 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 23:15:43,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,042 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:15:43,043 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 23:15:43,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,058 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 23:15:43,065 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 23:15:43,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:43,094 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:15:43,095 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 23:15:43,176 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 23:15:43,217 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 23:15:43,246 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 23:15:43,914 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 23:15:43,937 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 23:15:43,947 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 23:15:44,002 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:15:44,003 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 23:15:44,021 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:15:44,022 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 23:15:44,041 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-20 23:15:44,041 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 23:15:44,181 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 23:15:44,193 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 23:15:44,211 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 23:15:44,291 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 23:15:44,321 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 23:15:44,830 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 23:15:44,844 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 23:15:46,906 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:15:46,906 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 23:15:46,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:48,787 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:15:48,787 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 23:15:50,385 INFO L354 Elim1Store]: treesize reduction 1190, result has 35.1 percent of original size [2021-11-20 23:15:50,386 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 1383 treesize of output 1461 [2021-11-20 23:15:51,214 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:51,293 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:51,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:51,503 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-20 23:15:51,503 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 36 treesize of output 20 [2021-11-20 23:15:51,640 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:51,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:51,912 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:51,913 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 53 treesize of output 63 [2021-11-20 23:15:52,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:52,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 23:15:52,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:52,862 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-20 23:15:52,863 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 32 treesize of output 26 [2021-11-20 23:15:53,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:53,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:53,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-20 23:15:53,629 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:57,633 INFO L354 Elim1Store]: treesize reduction 759, result has 27.4 percent of original size [2021-11-20 23:15:57,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 2629 treesize of output 2155 [2021-11-20 23:15:57,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:59,112 INFO L354 Elim1Store]: treesize reduction 206, result has 65.7 percent of original size [2021-11-20 23:15:59,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 2147 treesize of output 2401 [2021-11-20 23:15:59,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:00,753 INFO L354 Elim1Store]: treesize reduction 134, result has 69.6 percent of original size [2021-11-20 23:16:00,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 2401 treesize of output 2615 [2021-11-20 23:16:42,284 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:16:42,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:16:42,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:42,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:42,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:42,608 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 78 treesize of output 26 [2021-11-20 23:16:45,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:45,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:45,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:45,606 INFO L354 Elim1Store]: treesize reduction 54, result has 57.5 percent of original size [2021-11-20 23:16:45,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:16:46,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:46,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:46,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:46,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:46,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:16:46,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 13 [2021-11-20 23:16:46,677 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:16:47,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:16:47,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:47,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:16:47,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:47,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:47,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:47,161 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-20 23:16:47,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 1 [2021-11-20 23:16:48,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:48,429 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:16:48,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:48,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:48,437 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 56 treesize of output 10 [2021-11-20 23:16:48,796 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:16:50,738 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:16:51,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:51,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:51,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:51,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 13 [2021-11-20 23:16:51,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:51,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:51,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:51,875 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 56 treesize of output 10 [2021-11-20 23:16:52,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:16:52,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:16:52,764 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-11-20 23:16:53,501 INFO L354 Elim1Store]: treesize reduction 101, result has 33.1 percent of original size [2021-11-20 23:16:53,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 78 [2021-11-20 23:17:08,415 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:08,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:08,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:08,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:08,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:08,978 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 78 treesize of output 26 [2021-11-20 23:17:11,177 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:12,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:12,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:12,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:12,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:12,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:12,666 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 78 treesize of output 26 [2021-11-20 23:17:13,210 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:13,893 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:14,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:14,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:14,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:14,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:14,366 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 62 treesize of output 10 [2021-11-20 23:17:27,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,290 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-11-20 23:17:27,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 13 [2021-11-20 23:17:38,692 WARN L234 Elim1Store]: Array PQE input equivalent to false