./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/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 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:36:28,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:36:28,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:36:28,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:36:28,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:36:28,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:36:28,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:36:28,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:36:28,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:36:28,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:36:28,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:36:28,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:36:28,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:36:28,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:36:28,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:36:28,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:36:28,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:36:28,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:36:28,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:36:28,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:36:28,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:36:28,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:36:28,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:36:28,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:36:28,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:36:28,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:36:28,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:36:28,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:36:28,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:36:28,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:36:28,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:36:28,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:36:28,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:36:28,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:36:28,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:36:28,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:36:28,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:36:28,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:36:28,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:36:28,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:36:28,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:36:28,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 00:36:28,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:36:28,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:36:28,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:36:28,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:36:28,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:36:28,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:36:28,554 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:36:28,555 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:36:28,555 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:36:28,555 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:36:28,556 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:36:28,556 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:36:28,557 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:36:28,557 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:36:28,557 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:36:28,557 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:36:28,558 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:36:28,558 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:36:28,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:36:28,559 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:36:28,559 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:36:28,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:36:28,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:36:28,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:36:28,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:36:28,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:36:28,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:36:28,560 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 00:36:28,561 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:36:28,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:36:28,561 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:36:28,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:36:28,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:36:28,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:36:28,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:36:28,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:36:28,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:36:28,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:36:28,563 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:36:28,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:36:28,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:36:28,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:36:28,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:36:28,564 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2021-11-21 00:36:28,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:36:28,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:36:28,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:36:28,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:36:28,942 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:36:28,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2021-11-21 00:36:29,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/data/c603370ea/927dde52e9d74a7dbd47af18aa1c04b1/FLAGfd24a884e [2021-11-21 00:36:29,777 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:36:29,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2021-11-21 00:36:29,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/data/c603370ea/927dde52e9d74a7dbd47af18aa1c04b1/FLAGfd24a884e [2021-11-21 00:36:29,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/data/c603370ea/927dde52e9d74a7dbd47af18aa1c04b1 [2021-11-21 00:36:29,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:36:29,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:36:29,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:36:29,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:36:29,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:36:29,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:36:29" (1/1) ... [2021-11-21 00:36:29,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a820d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:29, skipping insertion in model container [2021-11-21 00:36:29,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:36:29" (1/1) ... [2021-11-21 00:36:29,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:36:30,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:36:30,689 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[44118,44131] [2021-11-21 00:36:30,699 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[44660,44673] [2021-11-21 00:36:30,821 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[56247,56260] [2021-11-21 00:36:30,822 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[56368,56381] [2021-11-21 00:36:30,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:36:30,855 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:36:30,891 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[44118,44131] [2021-11-21 00:36:30,894 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[44660,44673] [2021-11-21 00:36:30,980 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[56247,56260] [2021-11-21 00:36:30,981 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_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[56368,56381] [2021-11-21 00:36:30,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:36:31,114 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:36:31,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31 WrapperNode [2021-11-21 00:36:31,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:36:31,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:36:31,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:36:31,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:36:31,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,240 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2021-11-21 00:36:31,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:36:31,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:36:31,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:36:31,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:36:31,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:36:31,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:36:31,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:36:31,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:36:31,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (1/1) ... [2021-11-21 00:36:31,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:36:31,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:36:31,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:36:31,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:36:31,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:36:31,478 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:36:31,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:36:31,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:36:31,478 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-21 00:36:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-21 00:36:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:36:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:36:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:36:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:36:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:36:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:36:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-21 00:36:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-21 00:36:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:36:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-21 00:36:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-21 00:36:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:36:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:36:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:36:31,809 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:36:31,811 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:36:32,828 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:36:33,281 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:36:33,282 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 00:36:33,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:36:33 BoogieIcfgContainer [2021-11-21 00:36:33,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:36:33,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:36:33,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:36:33,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:36:33,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:36:29" (1/3) ... [2021-11-21 00:36:33,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110b4b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:36:33, skipping insertion in model container [2021-11-21 00:36:33,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:36:31" (2/3) ... [2021-11-21 00:36:33,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110b4b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:36:33, skipping insertion in model container [2021-11-21 00:36:33,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:36:33" (3/3) ... [2021-11-21 00:36:33,307 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-1.i [2021-11-21 00:36:33,313 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:36:33,314 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-21 00:36:33,381 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:36:33,397 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:36:33,398 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-21 00:36:33,427 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) [2021-11-21 00:36:33,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:36:33,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:36:33,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:36:33,431 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)] === [2021-11-21 00:36:33,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:36:33,442 INFO L85 PathProgramCache]: Analyzing trace with hash 27392344, now seen corresponding path program 1 times [2021-11-21 00:36:33,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:36:33,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012290731] [2021-11-21 00:36:33,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:33,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:36:33,610 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:36:33,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437023445] [2021-11-21 00:36:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:33,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:33,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:36:33,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:36:33,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:36:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:36:33,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-21 00:36:33,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:36:34,003 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 00:36:34,004 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 [2021-11-21 00:36:34,020 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 [2021-11-21 00:36:34,160 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 [2021-11-21 00:36:34,253 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:36:34,254 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 [2021-11-21 00:36:46,423 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) [2021-11-21 00:36:46,543 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:36:46,544 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 [2021-11-21 00:36:46,582 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 [2021-11-21 00:36:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:46,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:36:46,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:36:46,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012290731] [2021-11-21 00:36:46,598 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:36:46,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437023445] [2021-11-21 00:36:46,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437023445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:36:46,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:36:46,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:36:46,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507438739] [2021-11-21 00:36:46,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:36:46,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:36:46,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:36:46,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:36:46,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:36:46,644 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) [2021-11-21 00:36:47,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:36:47,498 INFO L93 Difference]: Finished difference Result 318 states and 501 transitions. [2021-11-21 00:36:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:36:47,505 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 [2021-11-21 00:36:47,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:36:47,517 INFO L225 Difference]: With dead ends: 318 [2021-11-21 00:36:47,518 INFO L226 Difference]: Without dead ends: 154 [2021-11-21 00:36:47,522 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 [2021-11-21 00:36:47,527 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, 0.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:36:47,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 434 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 55 Unchecked, 0.8s Time] [2021-11-21 00:36:47,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-21 00:36:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2021-11-21 00:36:47,588 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) [2021-11-21 00:36:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2021-11-21 00:36:47,594 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2021-11-21 00:36:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:36:47,595 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2021-11-21 00:36:47,595 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) [2021-11-21 00:36:47,596 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2021-11-21 00:36:47,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:36:47,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:36:47,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:36:47,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:36:47,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 00:36:47,814 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)] === [2021-11-21 00:36:47,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:36:47,815 INFO L85 PathProgramCache]: Analyzing trace with hash -646465482, now seen corresponding path program 1 times [2021-11-21 00:36:47,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:36:47,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972101260] [2021-11-21 00:36:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:47,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:36:47,845 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:36:47,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370303617] [2021-11-21 00:36:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:47,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:47,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:36:47,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:36:47,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:36:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:36:48,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:36:48,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:36:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:48,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:36:48,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:36:48,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972101260] [2021-11-21 00:36:48,178 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:36:48,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370303617] [2021-11-21 00:36:48,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370303617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:36:48,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:36:48,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:36:48,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834232186] [2021-11-21 00:36:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:36:48,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:36:48,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:36:48,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:36:48,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:36:48,185 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) [2021-11-21 00:36:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:36:49,233 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2021-11-21 00:36:49,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:36:49,237 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 [2021-11-21 00:36:49,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:36:49,242 INFO L225 Difference]: With dead ends: 261 [2021-11-21 00:36:49,242 INFO L226 Difference]: Without dead ends: 259 [2021-11-21 00:36:49,243 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 [2021-11-21 00:36:49,244 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 106 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:36:49,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 443 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-21 00:36:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-21 00:36:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2021-11-21 00:36:49,292 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) [2021-11-21 00:36:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2021-11-21 00:36:49,303 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2021-11-21 00:36:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:36:49,304 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2021-11-21 00:36:49,304 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) [2021-11-21 00:36:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2021-11-21 00:36:49,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 00:36:49,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:36:49,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:36:49,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:36:49,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:49,523 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)] === [2021-11-21 00:36:49,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:36:49,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1434406572, now seen corresponding path program 1 times [2021-11-21 00:36:49,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:36:49,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601081665] [2021-11-21 00:36:49,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:49,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:36:49,560 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:36:49,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676112113] [2021-11-21 00:36:49,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:49,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:49,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:36:49,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:36:49,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:36:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:36:49,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:36:49,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:36:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:49,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:36:49,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:36:49,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601081665] [2021-11-21 00:36:49,906 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:36:49,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676112113] [2021-11-21 00:36:49,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676112113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:36:49,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:36:49,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:36:49,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196345576] [2021-11-21 00:36:49,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:36:49,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:36:49,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:36:49,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:36:49,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:36:49,910 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) [2021-11-21 00:36:50,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:36:50,933 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2021-11-21 00:36:50,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:36:50,938 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 [2021-11-21 00:36:50,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:36:50,943 INFO L225 Difference]: With dead ends: 441 [2021-11-21 00:36:50,943 INFO L226 Difference]: Without dead ends: 439 [2021-11-21 00:36:50,944 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 [2021-11-21 00:36:50,946 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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 [2021-11-21 00:36:50,947 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] [2021-11-21 00:36:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-21 00:36:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2021-11-21 00:36:50,988 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) [2021-11-21 00:36:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2021-11-21 00:36:50,993 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2021-11-21 00:36:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:36:50,993 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2021-11-21 00:36:50,993 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) [2021-11-21 00:36:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2021-11-21 00:36:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 00:36:50,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:36:50,996 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] [2021-11-21 00:36:51,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 00:36:51,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:51,208 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)] === [2021-11-21 00:36:51,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:36:51,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1558573003, now seen corresponding path program 1 times [2021-11-21 00:36:51,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:36:51,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428722339] [2021-11-21 00:36:51,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:51,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:36:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:36:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:51,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:36:51,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428722339] [2021-11-21 00:36:51,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428722339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:36:51,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:36:51,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:36:51,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419479992] [2021-11-21 00:36:51,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:36:51,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:36:51,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:36:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:36:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:36:51,303 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) [2021-11-21 00:36:53,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:36:53,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:36:53,604 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2021-11-21 00:36:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:36:53,609 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 [2021-11-21 00:36:53,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:36:53,614 INFO L225 Difference]: With dead ends: 682 [2021-11-21 00:36:53,615 INFO L226 Difference]: Without dead ends: 562 [2021-11-21 00:36:53,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:36:53,618 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:36:53,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 00:36:53,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-21 00:36:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2021-11-21 00:36:53,651 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) [2021-11-21 00:36:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2021-11-21 00:36:53,655 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2021-11-21 00:36:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:36:53,656 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2021-11-21 00:36:53,656 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) [2021-11-21 00:36:53,657 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2021-11-21 00:36:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:36:53,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:36:53,658 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] [2021-11-21 00:36:53,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:36:53,659 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)] === [2021-11-21 00:36:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:36:53,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2115465486, now seen corresponding path program 1 times [2021-11-21 00:36:53,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:36:53,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670817562] [2021-11-21 00:36:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:53,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:36:53,682 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:36:53,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903617616] [2021-11-21 00:36:53,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:53,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:53,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:36:53,685 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:36:53,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:36:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:36:53,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:36:53,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:36:54,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:54,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:36:54,060 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:36:54,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670817562] [2021-11-21 00:36:54,061 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:36:54,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903617616] [2021-11-21 00:36:54,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903617616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:36:54,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:36:54,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:36:54,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702877550] [2021-11-21 00:36:54,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:36:54,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:36:54,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:36:54,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:36:54,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:36:54,063 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) [2021-11-21 00:36:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:36:55,550 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2021-11-21 00:36:55,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:36:55,554 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 [2021-11-21 00:36:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:36:55,559 INFO L225 Difference]: With dead ends: 454 [2021-11-21 00:36:55,559 INFO L226 Difference]: Without dead ends: 453 [2021-11-21 00:36:55,560 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 [2021-11-21 00:36:55,561 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:36:55,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 304 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 00:36:55,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-21 00:36:55,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2021-11-21 00:36:55,588 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) [2021-11-21 00:36:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2021-11-21 00:36:55,592 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2021-11-21 00:36:55,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:36:55,593 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2021-11-21 00:36:55,593 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) [2021-11-21 00:36:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2021-11-21 00:36:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 00:36:55,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:36:55,595 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] [2021-11-21 00:36:55,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:36:55,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:55,810 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)] === [2021-11-21 00:36:55,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:36:55,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1154920565, now seen corresponding path program 1 times [2021-11-21 00:36:55,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:36:55,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750679121] [2021-11-21 00:36:55,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:55,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:36:55,846 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:36:55,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942589050] [2021-11-21 00:36:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:55,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:55,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:36:55,859 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:36:55,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:36:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:36:56,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:36:56,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:36:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:56,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:36:56,200 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:36:56,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750679121] [2021-11-21 00:36:56,200 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:36:56,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942589050] [2021-11-21 00:36:56,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942589050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:36:56,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:36:56,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:36:56,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754121715] [2021-11-21 00:36:56,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:36:56,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:36:56,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:36:56,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:36:56,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:36:56,204 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) [2021-11-21 00:36:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:36:56,785 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2021-11-21 00:36:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:36:56,792 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 [2021-11-21 00:36:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:36:56,797 INFO L225 Difference]: With dead ends: 443 [2021-11-21 00:36:56,797 INFO L226 Difference]: Without dead ends: 442 [2021-11-21 00:36:56,797 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 [2021-11-21 00:36:56,799 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:36:56,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 00:36:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-21 00:36:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-21 00:36:56,825 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) [2021-11-21 00:36:56,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2021-11-21 00:36:56,829 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2021-11-21 00:36:56,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:36:56,830 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2021-11-21 00:36:56,830 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) [2021-11-21 00:36:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2021-11-21 00:36:56,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 00:36:56,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:36:56,832 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] [2021-11-21 00:36:56,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:36:57,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:57,054 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)] === [2021-11-21 00:36:57,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:36:57,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1356353724, now seen corresponding path program 1 times [2021-11-21 00:36:57,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:36:57,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349926651] [2021-11-21 00:36:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:57,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:36:57,089 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:36:57,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345310189] [2021-11-21 00:36:57,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:57,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:57,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:36:57,109 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:36:57,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 00:36:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:36:57,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:36:57,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:36:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:57,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:36:57,538 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:36:57,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349926651] [2021-11-21 00:36:57,538 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:36:57,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345310189] [2021-11-21 00:36:57,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345310189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:36:57,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:36:57,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:36:57,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259800543] [2021-11-21 00:36:57,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:36:57,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:36:57,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:36:57,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:36:57,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:36:57,541 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) [2021-11-21 00:36:58,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:36:58,602 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2021-11-21 00:36:58,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:36:58,607 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 [2021-11-21 00:36:58,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:36:58,610 INFO L225 Difference]: With dead ends: 814 [2021-11-21 00:36:58,610 INFO L226 Difference]: Without dead ends: 377 [2021-11-21 00:36:58,612 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 [2021-11-21 00:36:58,613 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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 [2021-11-21 00:36:58,614 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] [2021-11-21 00:36:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-21 00:36:58,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-11-21 00:36:58,634 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) [2021-11-21 00:36:58,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2021-11-21 00:36:58,637 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2021-11-21 00:36:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:36:58,637 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2021-11-21 00:36:58,638 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) [2021-11-21 00:36:58,638 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2021-11-21 00:36:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:36:58,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:36:58,639 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] [2021-11-21 00:36:58,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:36:58,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-21 00:36:58,854 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)] === [2021-11-21 00:36:58,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:36:58,855 INFO L85 PathProgramCache]: Analyzing trace with hash 227049609, now seen corresponding path program 1 times [2021-11-21 00:36:58,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:36:58,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012903473] [2021-11-21 00:36:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:58,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:36:58,874 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:36:58,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006394067] [2021-11-21 00:36:58,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:36:58,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:36:58,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:36:58,876 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:36:58,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 00:36:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:36:59,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:36:59,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:36:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:59,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:36:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:36:59,595 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:36:59,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012903473] [2021-11-21 00:36:59,596 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:36:59,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006394067] [2021-11-21 00:36:59,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006394067] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:36:59,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1070394401] [2021-11-21 00:36:59,620 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-21 00:36:59,621 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:36:59,626 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:36:59,633 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:36:59,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:36:59,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:36:59,743 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:36:59,743 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 [2021-11-21 00:36:59,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:36:59,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:36:59,795 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 [2021-11-21 00:36:59,804 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 [2021-11-21 00:36:59,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:36:59,842 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 [2021-11-21 00:36:59,876 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 [2021-11-21 00:36:59,917 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 [2021-11-21 00:37:00,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:37:00,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:00,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:00,217 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-21 00:37:00,218 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 [2021-11-21 00:37:00,270 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 [2021-11-21 00:37:00,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:00,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:37:00,376 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 [2021-11-21 00:37:00,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:00,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:00,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:00,609 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 00:37:00,609 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 [2021-11-21 00:37:00,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:00,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:00,699 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 00:37:00,699 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 [2021-11-21 00:37:00,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:37:01,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:37:01,342 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 [2021-11-21 00:37:01,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:01,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:01,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:01,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:01,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:01,485 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 [2021-11-21 00:37:01,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:01,508 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 [2021-11-21 00:37:04,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:37:04,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,089 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 [2021-11-21 00:37:04,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,113 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 [2021-11-21 00:37:04,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,136 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 [2021-11-21 00:37:04,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,158 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 [2021-11-21 00:37:04,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:37:04,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:37:04,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:37:04,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,746 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:37:04,746 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 [2021-11-21 00:37:04,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,840 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:37:04,840 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 [2021-11-21 00:37:04,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,873 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 [2021-11-21 00:37:04,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:04,907 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 [2021-11-21 00:37:05,493 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 [2021-11-21 00:37:05,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:37:05,508 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 [2021-11-21 00:37:05,538 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 [2021-11-21 00:37:05,551 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 [2021-11-21 00:37:05,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,681 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 [2021-11-21 00:37:05,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,749 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 00:37:05,749 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 [2021-11-21 00:37:05,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,779 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 [2021-11-21 00:37:05,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,881 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-21 00:37:05,882 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 [2021-11-21 00:37:05,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,922 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 [2021-11-21 00:37:05,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:05,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,009 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 00:37:06,009 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 [2021-11-21 00:37:06,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,503 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:37:06,504 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 [2021-11-21 00:37:06,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,573 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 00:37:06,574 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 [2021-11-21 00:37:06,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,594 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 [2021-11-21 00:37:06,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,626 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:37:06,626 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 [2021-11-21 00:37:06,641 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 [2021-11-21 00:37:06,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,665 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 [2021-11-21 00:37:06,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:06,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-11-21 00:37:07,054 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-21 00:37:07,055 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 [2021-11-21 00:37:07,072 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 [2021-11-21 00:37:07,088 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 [2021-11-21 00:37:09,261 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-21 00:37:10,538 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 00:37:11,710 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:37:15,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1070394401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:37:15,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 00:37:15,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-21 00:37:15,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258492729] [2021-11-21 00:37:15,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:37:15,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-21 00:37:15,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:37:15,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-21 00:37:15,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 00:37:15,331 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) [2021-11-21 00:37:19,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:37:21,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:37:21,630 INFO L93 Difference]: Finished difference Result 725 states and 872 transitions. [2021-11-21 00:37:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 00:37:21,631 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 [2021-11-21 00:37:21,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:37:21,634 INFO L225 Difference]: With dead ends: 725 [2021-11-21 00:37:21,634 INFO L226 Difference]: Without dead ends: 365 [2021-11-21 00:37:21,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 00:37:21,637 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s 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, 6.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:37:21,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1031 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 448 Invalid, 0 Unknown, 446 Unchecked, 6.2s Time] [2021-11-21 00:37:21,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-21 00:37:21,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-21 00:37:21,659 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) [2021-11-21 00:37:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 436 transitions. [2021-11-21 00:37:21,662 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 436 transitions. Word has length 34 [2021-11-21 00:37:21,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:37:21,663 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 436 transitions. [2021-11-21 00:37:21,663 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) [2021-11-21 00:37:21,663 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 436 transitions. [2021-11-21 00:37:21,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-21 00:37:21,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:37:21,665 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] [2021-11-21 00:37:21,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:37:21,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-21 00:37:21,878 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)] === [2021-11-21 00:37:21,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:37:21,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1472683514, now seen corresponding path program 1 times [2021-11-21 00:37:21,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:37:21,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584603197] [2021-11-21 00:37:21,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:21,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:37:21,904 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:37:21,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834599559] [2021-11-21 00:37:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:21,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:37:21,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:37:21,906 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:37:21,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 00:37:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:37:22,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:37:22,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:37:22,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:22,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:37:22,200 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:37:22,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584603197] [2021-11-21 00:37:22,200 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:37:22,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834599559] [2021-11-21 00:37:22,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834599559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:37:22,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:37:22,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:37:22,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243823822] [2021-11-21 00:37:22,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:37:22,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:37:22,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:37:22,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:37:22,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:37:22,202 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) [2021-11-21 00:37:24,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:37:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:37:25,354 INFO L93 Difference]: Finished difference Result 664 states and 802 transitions. [2021-11-21 00:37:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:37:25,355 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 [2021-11-21 00:37:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:37:25,360 INFO L225 Difference]: With dead ends: 664 [2021-11-21 00:37:25,361 INFO L226 Difference]: Without dead ends: 662 [2021-11-21 00:37:25,361 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 [2021-11-21 00:37:25,362 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 151 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:37:25,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 678 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-21 00:37:25,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-21 00:37:25,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 650. [2021-11-21 00:37:25,395 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) [2021-11-21 00:37:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 795 transitions. [2021-11-21 00:37:25,399 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 795 transitions. Word has length 37 [2021-11-21 00:37:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:37:25,400 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 795 transitions. [2021-11-21 00:37:25,400 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) [2021-11-21 00:37:25,400 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 795 transitions. [2021-11-21 00:37:25,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:37:25,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:37:25,402 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] [2021-11-21 00:37:25,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:37:25,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:37:25,626 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)] === [2021-11-21 00:37:25,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:37:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1507787838, now seen corresponding path program 1 times [2021-11-21 00:37:25,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:37:25,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75892073] [2021-11-21 00:37:25,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:25,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:37:25,652 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:37:25,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456088984] [2021-11-21 00:37:25,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:25,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:37:25,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:37:25,670 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:37:25,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 00:37:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:37:25,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:37:25,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:37:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:26,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:37:26,203 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 00:37:26,203 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:37:26,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75892073] [2021-11-21 00:37:26,203 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:37:26,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456088984] [2021-11-21 00:37:26,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456088984] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:37:26,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [76299816] [2021-11-21 00:37:26,207 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 00:37:26,207 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:37:26,208 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:37:26,208 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:37:26,208 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:37:26,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,256 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:37:26,275 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 00:37:26,275 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 [2021-11-21 00:37:26,288 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 [2021-11-21 00:37:26,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,316 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 [2021-11-21 00:37:26,321 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 [2021-11-21 00:37:26,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,357 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 [2021-11-21 00:37:26,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,470 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:37:26,471 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 [2021-11-21 00:37:26,511 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 [2021-11-21 00:37:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,526 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 [2021-11-21 00:37:26,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:37:26,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:37:26,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,804 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 00:37:26,804 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 [2021-11-21 00:37:26,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:37:26,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,903 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 00:37:26,904 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 [2021-11-21 00:37:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:26,959 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 [2021-11-21 00:37:26,974 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 [2021-11-21 00:37:27,269 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 [2021-11-21 00:37:27,291 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 [2021-11-21 00:37:27,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:27,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:27,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:27,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:27,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:27,342 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 [2021-11-21 00:37:27,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:27,358 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 [2021-11-21 00:37:29,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:37:29,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:37:29,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:29,995 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 [2021-11-21 00:37:30,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,044 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 [2021-11-21 00:37:30,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,070 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 [2021-11-21 00:37:30,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,093 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 [2021-11-21 00:37:30,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:37:30,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:37:30,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,517 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:37:30,518 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 [2021-11-21 00:37:30,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,564 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:37:30,565 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 [2021-11-21 00:37:30,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,587 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 [2021-11-21 00:37:30,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:30,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 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 [2021-11-21 00:37:31,087 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 [2021-11-21 00:37:31,095 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 [2021-11-21 00:37:31,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:37:31,226 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 [2021-11-21 00:37:31,241 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 [2021-11-21 00:37:31,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,322 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 [2021-11-21 00:37:31,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,337 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 [2021-11-21 00:37:31,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,405 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 00:37:31,405 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 [2021-11-21 00:37:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,481 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 00:37:31,481 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 [2021-11-21 00:37:31,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,517 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 [2021-11-21 00:37:31,547 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 [2021-11-21 00:37:31,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:31,610 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 00:37:31,611 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 [2021-11-21 00:37:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,018 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 [2021-11-21 00:37:32,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-11-21 00:37:32,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,111 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:37:32,111 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 [2021-11-21 00:37:32,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,188 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 00:37:32,189 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 [2021-11-21 00:37:32,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,219 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:37:32,219 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 [2021-11-21 00:37:32,246 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 [2021-11-21 00:37:32,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:32,263 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 [2021-11-21 00:37:32,414 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 [2021-11-21 00:37:32,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 241 [2021-11-21 00:37:32,703 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 [2021-11-21 00:37:34,319 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-21 00:37:35,520 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 00:37:37,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,159 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:37:37,160 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 [2021-11-21 00:37:37,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,180 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:37:37,181 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 [2021-11-21 00:37:37,229 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:37:37,230 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 [2021-11-21 00:37:37,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:37,979 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:37:37,979 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 [2021-11-21 00:37:38,022 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:37:38,022 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 [2021-11-21 00:37:38,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:38,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:38,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:38,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:37:38,035 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 [2021-11-21 00:37:39,165 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:37:39,165 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 [2021-11-21 00:37:39,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:39,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:39,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:39,187 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:37:39,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 189 treesize of output 173 [2021-11-21 00:37:39,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:39,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:39,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:37:39,209 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:37:39,210 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 [2021-11-21 00:37:39,488 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-21 00:37:39,722 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:37:44,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [76299816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:37:44,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 00:37:44,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-21 00:37:44,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922724505] [2021-11-21 00:37:44,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:37:44,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 00:37:44,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:37:44,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 00:37:44,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 00:37:44,491 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) [2021-11-21 00:37:49,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:37:51,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:37:54,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:37:56,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:37:58,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:37:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:37:59,434 INFO L93 Difference]: Finished difference Result 1272 states and 1563 transitions. [2021-11-21 00:37:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-21 00:37:59,435 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 [2021-11-21 00:37:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:37:59,440 INFO L225 Difference]: With dead ends: 1272 [2021-11-21 00:37:59,440 INFO L226 Difference]: Without dead ends: 652 [2021-11-21 00:37:59,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 00:37:59,443 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 8 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 518 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:37:59,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1623 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 694 Invalid, 4 Unknown, 518 Unchecked, 14.9s Time] [2021-11-21 00:37:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-21 00:37:59,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2021-11-21 00:37:59,474 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) [2021-11-21 00:37:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 797 transitions. [2021-11-21 00:37:59,478 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 797 transitions. Word has length 46 [2021-11-21 00:37:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:37:59,478 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 797 transitions. [2021-11-21 00:37:59,478 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) [2021-11-21 00:37:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 797 transitions. [2021-11-21 00:37:59,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 00:37:59,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:37:59,480 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] [2021-11-21 00:37:59,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:37:59,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:37:59,706 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:37:59,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:37:59,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2074882063, now seen corresponding path program 1 times [2021-11-21 00:37:59,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:37:59,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292734905] [2021-11-21 00:37:59,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:59,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:37:59,735 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:37:59,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201103549] [2021-11-21 00:37:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:59,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:37:59,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:37:59,742 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:37:59,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fcfbfa-e48d-40a1-8821-c0656bf56fdc/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-21 00:37:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:37:59,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:37:59,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:38:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:38:00,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:38:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 00:38:00,221 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:38:00,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292734905] [2021-11-21 00:38:00,221 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:38:00,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201103549] [2021-11-21 00:38:00,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201103549] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:38:00,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [275264949] [2021-11-21 00:38:00,224 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 00:38:00,224 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:38:00,225 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:38:00,225 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:38:00,225 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:38:00,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,291 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:38:00,292 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 [2021-11-21 00:38:00,321 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 [2021-11-21 00:38:00,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,343 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 [2021-11-21 00:38:00,349 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 [2021-11-21 00:38:00,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,372 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 [2021-11-21 00:38:00,409 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 [2021-11-21 00:38:00,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,621 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-21 00:38:00,621 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 [2021-11-21 00:38:00,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:38:00,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:38:00,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,789 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-21 00:38:00,790 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 [2021-11-21 00:38:00,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:00,849 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 [2021-11-21 00:38:00,859 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 [2021-11-21 00:38:01,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:01,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:01,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:01,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:01,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:01,178 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 [2021-11-21 00:38:01,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:01,198 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 [2021-11-21 00:38:01,271 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 [2021-11-21 00:38:01,336 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 [2021-11-21 00:38:03,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:38:03,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:38:03,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,898 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 [2021-11-21 00:38:03,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,923 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 [2021-11-21 00:38:03,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,945 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 [2021-11-21 00:38:03,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:03,964 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 [2021-11-21 00:38:04,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:38:04,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,265 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:38:04,266 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 [2021-11-21 00:38:04,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,306 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:38:04,307 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 [2021-11-21 00:38:04,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,332 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 [2021-11-21 00:38:04,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,354 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 [2021-11-21 00:38:04,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:04,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:38:04,958 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 [2021-11-21 00:38:04,967 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 [2021-11-21 00:38:04,971 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 [2021-11-21 00:38:05,076 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 [2021-11-21 00:38:05,084 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 [2021-11-21 00:38:05,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,197 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 00:38:05,198 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 [2021-11-21 00:38:05,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,221 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 [2021-11-21 00:38:05,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,238 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 [2021-11-21 00:38:05,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,337 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:38:05,337 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 [2021-11-21 00:38:05,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,445 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:38:05,445 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 [2021-11-21 00:38:05,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,469 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 [2021-11-21 00:38:05,481 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 [2021-11-21 00:38:05,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:05,937 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 [2021-11-21 00:38:06,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,056 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:38:06,056 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 [2021-11-21 00:38:06,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,108 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 [2021-11-21 00:38:06,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,160 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:38:06,160 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 [2021-11-21 00:38:06,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,178 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 [2021-11-21 00:38:06,189 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 [2021-11-21 00:38:06,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:06,224 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:38:06,224 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 [2021-11-21 00:38:06,321 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 [2021-11-21 00:38:06,375 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 [2021-11-21 00:38:06,415 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 [2021-11-21 00:38:07,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:38:07,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:38:07,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:38:07,327 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:38:07,328 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 [2021-11-21 00:38:07,364 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:38:07,365 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 [2021-11-21 00:38:07,393 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 00:38:07,394 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 [2021-11-21 00:38:07,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:38:07,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:38:07,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:38:07,700 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 [2021-11-21 00:38:07,733 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 [2021-11-21 00:38:08,341 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 [2021-11-21 00:38:08,358 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 [2021-11-21 00:38:10,812 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 00:38:10,812 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 [2021-11-21 00:38:10,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:13,411 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 00:38:13,412 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 [2021-11-21 00:38:15,390 INFO L354 Elim1Store]: treesize reduction 1190, result has 35.1 percent of original size [2021-11-21 00:38:15,390 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 [2021-11-21 00:38:16,254 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:38:16,339 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:38:16,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:16,579 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 00:38:16,580 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 [2021-11-21 00:38:16,746 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:38:16,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:17,070 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:38:17,071 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 [2021-11-21 00:38:17,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:17,443 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 [2021-11-21 00:38:18,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:18,166 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-21 00:38:18,166 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 [2021-11-21 00:38:18,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:38:18,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:18,685 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 [2021-11-21 00:38:18,940 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:38:23,435 INFO L354 Elim1Store]: treesize reduction 759, result has 27.4 percent of original size [2021-11-21 00:38:23,435 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 [2021-11-21 00:38:23,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:23,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:24,901 INFO L354 Elim1Store]: treesize reduction 206, result has 65.7 percent of original size [2021-11-21 00:38:24,902 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 [2021-11-21 00:38:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:38:26,608 INFO L354 Elim1Store]: treesize reduction 134, result has 69.6 percent of original size [2021-11-21 00:38:26,609 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 [2021-11-21 00:39:09,392 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:39:09,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:09,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:09,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:09,783 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 [2021-11-21 00:39:12,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:12,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:12,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:12,482 INFO L354 Elim1Store]: treesize reduction 54, result has 57.5 percent of original size [2021-11-21 00:39:12,482 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 [2021-11-21 00:39:13,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:13,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:13,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:13,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:13,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:13,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:13,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 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 [2021-11-21 00:39:13,511 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:39:14,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:14,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:14,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:14,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:14,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:14,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:14,160 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-21 00:39:14,161 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 [2021-11-21 00:39:15,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:15,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:15,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:15,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:15,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-11-21 00:39:15,818 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:39:17,661 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:39:18,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:18,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:18,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:18,208 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 [2021-11-21 00:39:18,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:18,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:18,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:18,853 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 [2021-11-21 00:39:19,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:19,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:19,723 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-11-21 00:39:20,546 INFO L354 Elim1Store]: treesize reduction 101, result has 33.1 percent of original size [2021-11-21 00:39:20,547 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 [2021-11-21 00:39:35,158 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:39:35,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:35,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:35,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:35,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:35,815 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 [2021-11-21 00:39:38,123 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:39:39,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:39,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:39,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:39,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:39,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:39,858 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 [2021-11-21 00:39:40,410 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:39:41,187 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:39:41,595 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:39:41,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:41,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:41,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:41,658 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 [2021-11-21 00:39:55,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:55,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:55,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:55,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:55,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:55,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:39:55,232 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-11-21 00:39:55,237 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 [2021-11-21 00:40:07,106 WARN L234 Elim1Store]: Array PQE input equivalent to false