./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_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_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/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_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/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_d63e6da5-727a-4258-addd-68149ca1c7ba/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 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:32:32,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:32:32,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:32:32,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:32:32,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:32:32,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:32:32,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:32:32,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:32:32,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:32:32,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:32:32,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:32:32,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:32:32,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:32:32,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:32:32,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:32:32,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:32:32,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:32:32,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:32:32,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:32:32,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:32:32,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:32:32,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:32:32,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:32:32,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:32:33,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:32:33,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:32:33,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:32:33,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:32:33,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:32:33,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:32:33,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:32:33,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:32:33,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:32:33,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:32:33,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:32:33,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:32:33,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:32:33,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:32:33,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:32:33,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:32:33,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:32:33,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-20 23:32:33,072 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:32:33,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:32:33,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:32:33,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:32:33,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:32:33,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:32:33,074 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:32:33,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:32:33,075 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:32:33,075 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:32:33,076 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:32:33,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:32:33,076 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:32:33,077 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:32:33,077 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:32:33,077 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:32:33,077 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:32:33,078 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:32:33,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:32:33,079 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:32:33,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 23:32:33,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:32:33,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:32:33,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:32:33,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:32:33,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:32:33,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:32:33,082 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 23:32:33,082 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:32:33,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:32:33,083 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:32:33,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:32:33,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:32:33,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:32:33,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:33,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:32:33,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:32:33,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:32:33,085 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:32:33,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:32:33,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:32:33,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:32:33,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:32:33,086 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_d63e6da5-727a-4258-addd-68149ca1c7ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2021-11-20 23:32:33,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:32:33,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:32:33,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:32:33,382 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:32:33,383 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:32:33,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2021-11-20 23:32:33,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/data/ccbc8f4bc/949ed39ddf9243a4847a179e376314e1/FLAGaddf0c501 [2021-11-20 23:32:34,066 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:32:34,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2021-11-20 23:32:34,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/data/ccbc8f4bc/949ed39ddf9243a4847a179e376314e1/FLAGaddf0c501 [2021-11-20 23:32:34,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/data/ccbc8f4bc/949ed39ddf9243a4847a179e376314e1 [2021-11-20 23:32:34,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:32:34,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:32:34,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:34,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:32:34,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:32:34,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:34" (1/1) ... [2021-11-20 23:32:34,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb0667d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:34, skipping insertion in model container [2021-11-20 23:32:34,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:34" (1/1) ... [2021-11-20 23:32:34,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:32:34,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:32:34,998 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_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2021-11-20 23:32:35,012 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_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2021-11-20 23:32:35,168 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_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2021-11-20 23:32:35,169 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_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2021-11-20 23:32:35,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:35,197 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:32:35,247 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_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2021-11-20 23:32:35,251 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_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2021-11-20 23:32:35,321 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_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2021-11-20 23:32:35,322 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_d63e6da5-727a-4258-addd-68149ca1c7ba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2021-11-20 23:32:35,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:35,387 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:32:35,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35 WrapperNode [2021-11-20 23:32:35,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:35,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:35,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:32:35,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:32:35,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,531 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2021-11-20 23:32:35,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:35,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:32:35,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:32:35,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:32:35,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:32:35,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:32:35,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:32:35,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:32:35,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:35,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:35,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:32:35,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:32:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:32:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:32:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:32:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:32:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-20 23:32:35,711 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-20 23:32:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:32:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:32:35,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:32:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:32:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:32:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:32:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-20 23:32:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-20 23:32:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:32:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-20 23:32:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-20 23:32:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:32:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:32:35,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:32:36,061 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:32:36,063 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:32:36,976 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:32:37,303 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:32:37,303 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-20 23:32:37,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:37 BoogieIcfgContainer [2021-11-20 23:32:37,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:32:37,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:32:37,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:32:37,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:32:37,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:32:34" (1/3) ... [2021-11-20 23:32:37,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f923658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:37, skipping insertion in model container [2021-11-20 23:32:37,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (2/3) ... [2021-11-20 23:32:37,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f923658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:37, skipping insertion in model container [2021-11-20 23:32:37,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:37" (3/3) ... [2021-11-20 23:32:37,320 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2021-11-20 23:32:37,325 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:32:37,325 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-20 23:32:37,369 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:32:37,375 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:32:37,376 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-20 23:32:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 23:32:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 23:32:37,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:37,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 23:32:37,400 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:37,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash 27392344, now seen corresponding path program 1 times [2021-11-20 23:32:37,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:37,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865024535] [2021-11-20 23:32:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:37,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:37,548 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:37,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836929673] [2021-11-20 23:32:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:37,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:37,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:37,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:37,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:32:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:37,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 23:32:37,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:37,855 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-20 23:32:37,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2021-11-20 23:32:37,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-20 23:32:37,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-20 23:32:38,058 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:32:38,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2021-11-20 23:32:50,199 WARN L227 SmtUtils]: Spent 12.10s on a formula simplification. DAG size of input: 24 DAG size of output: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 23:32:50,304 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:32:50,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2021-11-20 23:32:50,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-20 23:32:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:50,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:50,349 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:50,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865024535] [2021-11-20 23:32:50,349 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:50,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836929673] [2021-11-20 23:32:50,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836929673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:50,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:50,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:50,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691851180] [2021-11-20 23:32:50,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:50,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:50,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:50,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:50,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:50,391 INFO L87 Difference]: Start difference. First operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:51,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:51,133 INFO L93 Difference]: Finished difference Result 318 states and 501 transitions. [2021-11-20 23:32:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:32:51,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-20 23:32:51,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:51,147 INFO L225 Difference]: With dead ends: 318 [2021-11-20 23:32:51,147 INFO L226 Difference]: Without dead ends: 154 [2021-11-20 23:32:51,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:51,154 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 2 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:51,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 434 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 55 Unchecked, 0.7s Time] [2021-11-20 23:32:51,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-20 23:32:51,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2021-11-20 23:32:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 125 states have (on average 1.256) internal successors, (157), 139 states have internal predecessors, (157), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-20 23:32:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2021-11-20 23:32:51,207 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2021-11-20 23:32:51,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:51,207 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2021-11-20 23:32:51,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2021-11-20 23:32:51,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:32:51,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:51,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:51,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:51,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-20 23:32:51,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:51,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:51,438 INFO L85 PathProgramCache]: Analyzing trace with hash -646465482, now seen corresponding path program 1 times [2021-11-20 23:32:51,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:51,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579203004] [2021-11-20 23:32:51,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:51,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:51,469 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:51,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675868605] [2021-11-20 23:32:51,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:51,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:51,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:51,477 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:51,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:32:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:51,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:32:51,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:51,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:51,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:51,743 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:51,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579203004] [2021-11-20 23:32:51,744 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:51,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675868605] [2021-11-20 23:32:51,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675868605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:51,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:51,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:51,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923197659] [2021-11-20 23:32:51,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:51,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:51,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:51,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:51,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:51,748 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:53,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:53,629 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2021-11-20 23:32:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:32:53,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:32:53,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:53,637 INFO L225 Difference]: With dead ends: 261 [2021-11-20 23:32:53,638 INFO L226 Difference]: Without dead ends: 259 [2021-11-20 23:32:53,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:53,640 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 106 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:53,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 443 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 23:32:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-20 23:32:53,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2021-11-20 23:32:53,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.25) internal successors, (270), 231 states have internal predecessors, (270), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 23:32:53,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2021-11-20 23:32:53,668 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2021-11-20 23:32:53,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:53,669 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2021-11-20 23:32:53,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:53,669 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2021-11-20 23:32:53,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 23:32:53,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:53,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:53,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:53,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-20 23:32:53,897 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:53,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1434406572, now seen corresponding path program 1 times [2021-11-20 23:32:53,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:53,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692734640] [2021-11-20 23:32:53,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:53,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:53,942 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:53,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811843383] [2021-11-20 23:32:53,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:53,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:53,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:53,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:53,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:32:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:54,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:32:54,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:54,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:54,203 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:54,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692734640] [2021-11-20 23:32:54,203 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:54,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811843383] [2021-11-20 23:32:54,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811843383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:54,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:54,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:54,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823292183] [2021-11-20 23:32:54,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:54,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:54,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:54,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:54,207 INFO L87 Difference]: Start difference. First operand 249 states and 298 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:55,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:55,435 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2021-11-20 23:32:55,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:32:55,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 23:32:55,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:55,444 INFO L225 Difference]: With dead ends: 441 [2021-11-20 23:32:55,444 INFO L226 Difference]: Without dead ends: 439 [2021-11-20 23:32:55,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:55,447 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:55,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:32:55,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-20 23:32:55,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2021-11-20 23:32:55,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.25) internal successors, (480), 400 states have internal predecessors, (480), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-20 23:32:55,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2021-11-20 23:32:55,489 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2021-11-20 23:32:55,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:55,490 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2021-11-20 23:32:55,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:55,490 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2021-11-20 23:32:55,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:32:55,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:55,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:55,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:55,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:55,707 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:55,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:55,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1558573003, now seen corresponding path program 1 times [2021-11-20 23:32:55,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:55,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885117019] [2021-11-20 23:32:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:55,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:55,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:55,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:55,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885117019] [2021-11-20 23:32:55,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885117019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:55,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:55,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:32:55,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920312570] [2021-11-20 23:32:55,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:55,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:55,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:55,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:55,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:55,805 INFO L87 Difference]: Start difference. First operand 428 states and 529 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:57,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:57,084 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2021-11-20 23:32:57,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:32:57,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:32:57,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:57,091 INFO L225 Difference]: With dead ends: 682 [2021-11-20 23:32:57,092 INFO L226 Difference]: Without dead ends: 562 [2021-11-20 23:32:57,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:57,094 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:57,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:32:57,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-20 23:32:57,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2021-11-20 23:32:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 400 states have internal predecessors, (479), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-20 23:32:57,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2021-11-20 23:32:57,128 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2021-11-20 23:32:57,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:57,128 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2021-11-20 23:32:57,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2021-11-20 23:32:57,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 23:32:57,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:57,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:57,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:32:57,131 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:57,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:57,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2115465486, now seen corresponding path program 1 times [2021-11-20 23:32:57,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:57,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687216516] [2021-11-20 23:32:57,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:57,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:57,151 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:57,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675066007] [2021-11-20 23:32:57,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:57,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:57,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:57,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:57,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:32:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:57,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:32:57,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:57,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:57,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:57,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687216516] [2021-11-20 23:32:57,452 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:57,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675066007] [2021-11-20 23:32:57,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675066007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:57,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:57,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:32:57,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036363760] [2021-11-20 23:32:57,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:57,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:57,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:57,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:57,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:57,455 INFO L87 Difference]: Start difference. First operand 428 states and 528 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:32:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:58,119 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2021-11-20 23:32:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:58,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-20 23:32:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:58,126 INFO L225 Difference]: With dead ends: 454 [2021-11-20 23:32:58,127 INFO L226 Difference]: Without dead ends: 453 [2021-11-20 23:32:58,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:58,128 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:58,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 304 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 23:32:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-20 23:32:58,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2021-11-20 23:32:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 394 states have (on average 1.2436548223350254) internal successors, (490), 411 states have internal predecessors, (490), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-20 23:32:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2021-11-20 23:32:58,156 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2021-11-20 23:32:58,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:58,157 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2021-11-20 23:32:58,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:32:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2021-11-20 23:32:58,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:32:58,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:58,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:58,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:32:58,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:58,385 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:58,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:58,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1154920565, now seen corresponding path program 1 times [2021-11-20 23:32:58,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:58,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546019172] [2021-11-20 23:32:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:58,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:58,417 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:58,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416814165] [2021-11-20 23:32:58,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:58,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:58,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:58,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:58,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:32:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:58,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:32:58,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:58,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:58,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:32:58,699 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:58,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546019172] [2021-11-20 23:32:58,699 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:58,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416814165] [2021-11-20 23:32:58,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416814165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:58,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:58,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:32:58,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749560521] [2021-11-20 23:32:58,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:58,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:58,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:58,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:58,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:58,703 INFO L87 Difference]: Start difference. First operand 443 states and 545 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:32:59,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:59,630 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2021-11-20 23:32:59,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:59,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-20 23:32:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:59,639 INFO L225 Difference]: With dead ends: 443 [2021-11-20 23:32:59,639 INFO L226 Difference]: Without dead ends: 442 [2021-11-20 23:32:59,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:59,640 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:59,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 23:32:59,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-20 23:32:59,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-20 23:32:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.2385786802030456) internal successors, (488), 410 states have internal predecessors, (488), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-20 23:32:59,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2021-11-20 23:32:59,666 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2021-11-20 23:32:59,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:59,667 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2021-11-20 23:32:59,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:32:59,667 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2021-11-20 23:32:59,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:32:59,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:59,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:59,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-20 23:32:59,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:59,894 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:32:59,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:59,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1356353724, now seen corresponding path program 1 times [2021-11-20 23:32:59,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:59,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429018363] [2021-11-20 23:32:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:59,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:59,907 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:59,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628716241] [2021-11-20 23:32:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:59,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:59,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:59,909 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:59,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 23:33:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:00,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:33:00,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:00,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:33:00,245 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429018363] [2021-11-20 23:33:00,245 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628716241] [2021-11-20 23:33:00,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628716241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:00,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:00,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:33:00,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188756385] [2021-11-20 23:33:00,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:00,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:33:00,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:33:00,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:33:00,247 INFO L87 Difference]: Start difference. First operand 442 states and 543 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:01,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:01,468 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2021-11-20 23:33:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:33:01,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 23:33:01,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:01,475 INFO L225 Difference]: With dead ends: 814 [2021-11-20 23:33:01,475 INFO L226 Difference]: Without dead ends: 377 [2021-11-20 23:33:01,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:33:01,478 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:01,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 284 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:33:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-20 23:33:01,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-11-20 23:33:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 326 states have (on average 1.2147239263803682) internal successors, (396), 341 states have internal predecessors, (396), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-20 23:33:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2021-11-20 23:33:01,500 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2021-11-20 23:33:01,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:01,500 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2021-11-20 23:33:01,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:01,501 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2021-11-20 23:33:01,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 23:33:01,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:01,502 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:01,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:01,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:01,722 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:33:01,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:01,723 INFO L85 PathProgramCache]: Analyzing trace with hash 227049609, now seen corresponding path program 1 times [2021-11-20 23:33:01,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:01,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552368416] [2021-11-20 23:33:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:01,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:01,750 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:33:01,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19794382] [2021-11-20 23:33:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:01,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:01,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:01,752 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:01,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 23:33:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:01,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:33:01,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:02,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:02,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:33:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:02,283 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:02,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552368416] [2021-11-20 23:33:02,284 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:02,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19794382] [2021-11-20 23:33:02,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19794382] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:33:02,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1438522541] [2021-11-20 23:33:02,308 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-20 23:33:02,308 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:33:02,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:33:02,317 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:33:02,318 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:33:02,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:02,427 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:33:02,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:33:02,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:02,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:02,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-20 23:33:02,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-20 23:33:02,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:02,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-20 23:33:02,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:02,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:02,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:02,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:02,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:02,833 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-20 23:33:02,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 65 [2021-11-20 23:33:02,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-20 23:33:02,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:02,976 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:33:02,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2021-11-20 23:33:03,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,176 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-20 23:33:03,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-20 23:33:03,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,251 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-20 23:33:03,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-20 23:33:03,336 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 15 treesize of output 1 [2021-11-20 23:33:03,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:03,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:03,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-20 23:33:03,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:03,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-20 23:33:06,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:06,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-20 23:33:06,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-20 23:33:06,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-20 23:33:06,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:33:06,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:06,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:06,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:06,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,622 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:06,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-20 23:33:06,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,703 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:06,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-20 23:33:06,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-20 23:33:06,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-20 23:33:07,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:33:07,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:07,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:33:07,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:33:07,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:33:07,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:07,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,427 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-20 23:33:07,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 70 [2021-11-20 23:33:07,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2021-11-20 23:33:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,561 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-20 23:33:07,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:07,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:07,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,658 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-20 23:33:07,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-20 23:33:08,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,067 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:33:08,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:33:08,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,118 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-20 23:33:08,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:08,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:08,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,157 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:08,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:33:08,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-20 23:33:08,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-11-20 23:33:08,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:08,574 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-20 23:33:08,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 306 treesize of output 272 [2021-11-20 23:33:08,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 287 treesize of output 283 [2021-11-20 23:33:08,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 298 treesize of output 294 [2021-11-20 23:33:10,465 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-20 23:33:11,587 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-20 23:33:12,677 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:33:16,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1438522541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:16,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:33:16,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-20 23:33:16,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138825668] [2021-11-20 23:33:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:16,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-20 23:33:16,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:16,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-20 23:33:16,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:33:16,052 INFO L87 Difference]: Start difference. First operand 368 states and 441 transitions. Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:33:19,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:21,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:22,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:22,171 INFO L93 Difference]: Finished difference Result 725 states and 872 transitions. [2021-11-20 23:33:22,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 23:33:22,172 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-20 23:33:22,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:22,174 INFO L225 Difference]: With dead ends: 725 [2021-11-20 23:33:22,175 INFO L226 Difference]: Without dead ends: 365 [2021-11-20 23:33:22,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:33:22,177 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s 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, 6.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:22,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1031 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 448 Invalid, 0 Unknown, 446 Unchecked, 6.1s Time] [2021-11-20 23:33:22,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-20 23:33:22,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-20 23:33:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 323 states have (on average 1.2105263157894737) internal successors, (391), 337 states have internal predecessors, (391), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-20 23:33:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 436 transitions. [2021-11-20 23:33:22,199 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 436 transitions. Word has length 34 [2021-11-20 23:33:22,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:22,200 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 436 transitions. [2021-11-20 23:33:22,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:33:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 436 transitions. [2021-11-20 23:33:22,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-20 23:33:22,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:22,202 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:22,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:22,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:22,429 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:33:22,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1472683514, now seen corresponding path program 1 times [2021-11-20 23:33:22,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:22,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247525951] [2021-11-20 23:33:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:22,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:22,452 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:33:22,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377333436] [2021-11-20 23:33:22,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:22,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:22,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:22,457 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:22,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 23:33:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:22,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:33:22,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:22,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:33:22,742 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:22,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247525951] [2021-11-20 23:33:22,743 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:22,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377333436] [2021-11-20 23:33:22,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377333436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:22,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:22,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:22,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628783101] [2021-11-20 23:33:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:22,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:22,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:22,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:22,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:22,748 INFO L87 Difference]: Start difference. First operand 365 states and 436 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:33:25,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:25,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:25,713 INFO L93 Difference]: Finished difference Result 664 states and 802 transitions. [2021-11-20 23:33:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:33:25,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2021-11-20 23:33:25,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:25,718 INFO L225 Difference]: With dead ends: 664 [2021-11-20 23:33:25,718 INFO L226 Difference]: Without dead ends: 662 [2021-11-20 23:33:25,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:25,720 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 151 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 2.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:25,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 678 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-20 23:33:25,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-20 23:33:25,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 650. [2021-11-20 23:33:25,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 593 states have (on average 1.2107925801011805) internal successors, (718), 607 states have internal predecessors, (718), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-20 23:33:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 795 transitions. [2021-11-20 23:33:25,755 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 795 transitions. Word has length 37 [2021-11-20 23:33:25,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:25,755 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 795 transitions. [2021-11-20 23:33:25,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:33:25,756 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 795 transitions. [2021-11-20 23:33:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 23:33:25,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:25,757 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:25,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:25,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 23:33:25,973 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:33:25,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1507787838, now seen corresponding path program 1 times [2021-11-20 23:33:25,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:25,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759742995] [2021-11-20 23:33:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:25,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:25,984 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:33:25,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013636394] [2021-11-20 23:33:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:25,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:25,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:26,001 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:26,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 23:33:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:26,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:33:26,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:26,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:33:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 23:33:26,423 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:26,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759742995] [2021-11-20 23:33:26,423 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:26,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013636394] [2021-11-20 23:33:26,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013636394] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:33:26,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [302340645] [2021-11-20 23:33:26,427 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-20 23:33:26,428 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:33:26,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:33:26,428 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:33:26,429 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:33:26,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,463 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:33:26,485 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-20 23:33:26,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-20 23:33:26,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2021-11-20 23:33:26,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-20 23:33:26,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:33:26,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2021-11-20 23:33:26,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,662 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:33:26,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:33:26,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:26,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-20 23:33:26,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:26,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:26,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:26,975 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-20 23:33:26,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-20 23:33:27,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:27,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,089 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-20 23:33:27,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-20 23:33:27,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2021-11-20 23:33:27,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-20 23:33:27,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:27,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:27,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-20 23:33:27,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:27,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-20 23:33:29,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:29,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:29,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-20 23:33:29,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2021-11-20 23:33:29,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 72 [2021-11-20 23:33:29,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:33:29,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:29,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:29,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:30,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,065 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:30,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-20 23:33:30,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,100 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:30,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-20 23:33:30,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-20 23:33:30,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-20 23:33:30,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:33:30,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:33:30,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:30,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:33:30,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:33:30,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:30,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:30,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,804 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-20 23:33:30,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:30,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,880 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-20 23:33:30,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 70 [2021-11-20 23:33:30,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2021-11-20 23:33:30,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-20 23:33:30,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,987 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-20 23:33:30,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-20 23:33:31,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:31,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,369 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:33:31,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:33:31,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,436 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-20 23:33:31,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:31,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,462 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:31,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:33:31,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-20 23:33:31,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:31,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-11-20 23:33:31,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 230 [2021-11-20 23:33:31,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 241 [2021-11-20 23:33:31,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:33,220 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-20 23:33:34,198 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-20 23:33:35,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:35,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:35,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:35,423 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:35,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-20 23:33:35,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:35,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:35,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:35,437 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:35,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 172 treesize of output 156 [2021-11-20 23:33:35,483 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:33:35,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 147 treesize of output 139 [2021-11-20 23:33:36,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:36,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:36,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:36,122 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:36,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-20 23:33:36,161 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:33:36,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 172 treesize of output 164 [2021-11-20 23:33:36,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:36,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:36,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:36,189 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:36,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-20 23:33:37,212 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-20 23:33:37,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 197 treesize of output 189 [2021-11-20 23:33:37,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:37,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:37,247 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:37,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 189 treesize of output 173 [2021-11-20 23:33:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:37,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:37,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:37,267 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:37,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-20 23:33:37,437 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-20 23:33:37,646 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:33:41,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [302340645] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:41,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:33:41,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-20 23:33:41,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892013104] [2021-11-20 23:33:41,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:41,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 23:33:41,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:41,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 23:33:41,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-20 23:33:41,468 INFO L87 Difference]: Start difference. First operand 650 states and 795 transitions. Second operand has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 23:33:50,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:52,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:33:52,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:52,702 INFO L93 Difference]: Finished difference Result 1272 states and 1563 transitions. [2021-11-20 23:33:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 23:33:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2021-11-20 23:33:52,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:52,708 INFO L225 Difference]: With dead ends: 1272 [2021-11-20 23:33:52,708 INFO L226 Difference]: Without dead ends: 652 [2021-11-20 23:33:52,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-20 23:33:52,711 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 8 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 518 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:52,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1623 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 697 Invalid, 2 Unknown, 518 Unchecked, 11.2s Time] [2021-11-20 23:33:52,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-20 23:33:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2021-11-20 23:33:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 595 states have (on average 1.2100840336134453) internal successors, (720), 609 states have internal predecessors, (720), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-20 23:33:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 797 transitions. [2021-11-20 23:33:52,748 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 797 transitions. Word has length 46 [2021-11-20 23:33:52,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:52,748 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 797 transitions. [2021-11-20 23:33:52,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 23:33:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 797 transitions. [2021-11-20 23:33:52,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 23:33:52,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:52,750 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:52,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:52,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 23:33:52,965 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-20 23:33:52,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:52,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2074882063, now seen corresponding path program 1 times [2021-11-20 23:33:52,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:52,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676917548] [2021-11-20 23:33:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:52,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:52,994 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:33:52,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534018174] [2021-11-20 23:33:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:52,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:52,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:53,006 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:53,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d63e6da5-727a-4258-addd-68149ca1c7ba/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 23:33:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:53,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:33:53,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:53,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:33:53,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:33:53,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 23:33:53,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:53,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676917548] [2021-11-20 23:33:53,479 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:53,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534018174] [2021-11-20 23:33:53,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534018174] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:33:53,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1178963767] [2021-11-20 23:33:53,482 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-20 23:33:53,483 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:33:53,483 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:33:53,483 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:33:53,484 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:33:53,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:53,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:53,539 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:33:53,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:33:53,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:53,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:53,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:53,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-20 23:33:53,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-20 23:33:53,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:53,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-20 23:33:53,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:53,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:53,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:53,920 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-20 23:33:53,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 46 [2021-11-20 23:33:53,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:54,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:33:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,088 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-20 23:33:54,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-20 23:33:54,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2021-11-20 23:33:54,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-20 23:33:54,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-20 23:33:54,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:54,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-20 23:33:54,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:54,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:56,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:56,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:56,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:56,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:56,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:56,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:56,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:33:57,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-20 23:33:57,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-20 23:33:57,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-20 23:33:57,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:33:57,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:57,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,419 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:57,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-20 23:33:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,465 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:33:57,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-20 23:33:57,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-20 23:33:57,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-20 23:33:57,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:57,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:33:58,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:33:58,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:33:58,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:58,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:33:58,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:33:58,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,192 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-20 23:33:58,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:58,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:58,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:58,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,294 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:33:58,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:33:58,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,360 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:58,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:33:58,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-11-20 23:33:58,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-20 23:33:58,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:58,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,765 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:33:58,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:33:58,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:33:58,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,877 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:58,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:33:58,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-11-20 23:33:58,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-20 23:33:58,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:58,944 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:33:58,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:33:59,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-20 23:33:59,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 23:33:59,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-20 23:33:59,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:33:59,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:59,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:33:59,768 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:33:59,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 136 [2021-11-20 23:33:59,791 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:33:59,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 132 [2021-11-20 23:33:59,817 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-20 23:33:59,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 128 [2021-11-20 23:33:59,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:33:59,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:33:59,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:34:00,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-20 23:34:00,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-20 23:34:00,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-20 23:34:00,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-20 23:34:02,330 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:34:02,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1526 treesize of output 1147 [2021-11-20 23:34:02,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:03,881 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:34:03,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1583 treesize of output 1349 [2021-11-20 23:34:05,368 INFO L354 Elim1Store]: treesize reduction 1190, result has 35.1 percent of original size [2021-11-20 23:34:05,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 1383 treesize of output 1461 [2021-11-20 23:34:06,193 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:34:06,268 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:34:06,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:06,429 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-20 23:34:06,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 23:34:06,542 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:34:06,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:06,802 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:34:06,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-20 23:34:07,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:07,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 23:34:07,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:07,725 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-20 23:34:07,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 26 [2021-11-20 23:34:08,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:34:08,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:08,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-20 23:34:08,389 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:34:13,177 INFO L354 Elim1Store]: treesize reduction 759, result has 27.4 percent of original size [2021-11-20 23:34:13,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 2629 treesize of output 2155 [2021-11-20 23:34:13,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:13,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:15,034 INFO L354 Elim1Store]: treesize reduction 206, result has 65.7 percent of original size [2021-11-20 23:34:15,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 2147 treesize of output 2401 [2021-11-20 23:34:15,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:16,653 INFO L354 Elim1Store]: treesize reduction 134, result has 69.6 percent of original size [2021-11-20 23:34:16,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 2401 treesize of output 2615 [2021-11-20 23:34:55,283 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:34:55,593 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:34:55,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:55,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:55,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:55,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 26 [2021-11-20 23:34:57,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:57,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:57,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:58,152 INFO L354 Elim1Store]: treesize reduction 54, result has 57.5 percent of original size [2021-11-20 23:34:58,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:34:58,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:58,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:58,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:58,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:58,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:58,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:34:58,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 13 [2021-11-20 23:34:59,012 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:34:59,363 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:34:59,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:59,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:34:59,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:59,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:59,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:59,480 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-20 23:34:59,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 1 [2021-11-20 23:35:00,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:00,641 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:35:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:00,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:00,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 10 [2021-11-20 23:35:00,925 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:35:02,770 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:35:03,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:03,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:03,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:03,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 13 [2021-11-20 23:35:03,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:03,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:03,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:03,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 10 [2021-11-20 23:35:04,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:04,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:35:04,828 INFO L244 Elim1Store]: Index analysis took 150 ms [2021-11-20 23:35:05,614 INFO L354 Elim1Store]: treesize reduction 101, result has 33.1 percent of original size [2021-11-20 23:35:05,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 78 [2021-11-20 23:35:20,142 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:35:20,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:35:20,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:20,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:20,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:20,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 26 [2021-11-20 23:35:23,095 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:35:24,519 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:35:24,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:24,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:35:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:24,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 26 [2021-11-20 23:35:25,091 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:35:25,759 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:35:26,172 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:35:26,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:26,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:26,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:26,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 10 [2021-11-20 23:35:37,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:37,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:37,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:37,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:37,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:35:37,448 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-11-20 23:35:37,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 13 [2021-11-20 23:35:48,325 WARN L234 Elim1Store]: Array PQE input equivalent to false