./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/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 bd635b7902366e8a0b08b14a90a1f3949f04bf734a3e09a83f5077ced842f5da --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:27:41,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:27:41,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:27:42,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:27:42,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:27:42,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:27:42,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:27:42,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:27:42,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:27:42,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:27:42,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:27:42,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:27:42,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:27:42,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:27:42,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:27:42,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:27:42,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:27:42,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:27:42,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:27:42,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:27:42,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:27:42,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:27:42,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:27:42,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:27:42,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:27:42,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:27:42,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:27:42,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:27:42,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:27:42,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:27:42,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:27:42,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:27:42,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:27:42,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:27:42,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:27:42,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:27:42,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:27:42,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:27:42,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:27:42,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:27:42,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:27:42,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 01:27:42,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:27:42,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:27:42,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:27:42,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:27:42,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:27:42,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:27:42,125 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:27:42,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:27:42,126 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:27:42,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:27:42,126 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:27:42,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:27:42,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:27:42,133 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:27:42,133 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:27:42,134 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:27:42,134 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:27:42,134 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:27:42,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:27:42,135 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:27:42,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:27:42,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:27:42,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:27:42,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:27:42,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:27:42,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:27:42,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:27:42,138 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 01:27:42,139 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:27:42,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:27:42,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:27:42,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:27:42,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:27:42,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:27:42,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:27:42,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:27:42,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:27:42,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:27:42,144 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:27:42,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:27:42,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:27:42,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:27:42,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:27:42,147 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd635b7902366e8a0b08b14a90a1f3949f04bf734a3e09a83f5077ced842f5da [2021-11-21 01:27:42,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:27:42,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:27:42,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:27:42,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:27:42,537 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:27:42,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i [2021-11-21 01:27:42,634 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/data/7c44f93e6/478142d4a5bc40828713e9224931f4ef/FLAGd85cb6ed0 [2021-11-21 01:27:43,388 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:27:43,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i [2021-11-21 01:27:43,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/data/7c44f93e6/478142d4a5bc40828713e9224931f4ef/FLAGd85cb6ed0 [2021-11-21 01:27:43,560 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/data/7c44f93e6/478142d4a5bc40828713e9224931f4ef [2021-11-21 01:27:43,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:27:43,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:27:43,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:27:43,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:27:43,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:27:43,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:27:43" (1/1) ... [2021-11-21 01:27:43,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696f47ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:43, skipping insertion in model container [2021-11-21 01:27:43,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:27:43" (1/1) ... [2021-11-21 01:27:43,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:27:43,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:27:44,608 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[44118,44131] [2021-11-21 01:27:44,634 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[44660,44673] [2021-11-21 01:27:44,774 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[56247,56260] [2021-11-21 01:27:44,775 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[56368,56381] [2021-11-21 01:27:44,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:27:44,818 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:27:44,858 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[44118,44131] [2021-11-21 01:27:44,861 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[44660,44673] [2021-11-21 01:27:44,994 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[56247,56260] [2021-11-21 01:27:45,008 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_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-2.i[56368,56381] [2021-11-21 01:27:45,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:27:45,103 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:27:45,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45 WrapperNode [2021-11-21 01:27:45,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:27:45,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:27:45,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:27:45,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:27:45,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,228 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1209 [2021-11-21 01:27:45,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:27:45,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:27:45,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:27:45,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:27:45,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:27:45,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:27:45,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:27:45,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:27:45,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (1/1) ... [2021-11-21 01:27:45,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:27:45,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:27:45,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:27:45,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:27:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:27:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:27:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:27:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:27:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-21 01:27:45,504 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-21 01:27:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:27:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:27:45,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:27:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:27:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:27:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:27:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-21 01:27:45,505 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-21 01:27:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:27:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-21 01:27:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-21 01:27:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:27:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:27:45,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:27:45,958 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:27:45,960 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:27:47,272 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:27:47,852 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:27:47,853 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-21 01:27:47,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:47 BoogieIcfgContainer [2021-11-21 01:27:47,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:27:47,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:27:47,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:27:47,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:27:47,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:27:43" (1/3) ... [2021-11-21 01:27:47,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c67cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:27:47, skipping insertion in model container [2021-11-21 01:27:47,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:27:45" (2/3) ... [2021-11-21 01:27:47,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c67cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:27:47, skipping insertion in model container [2021-11-21 01:27:47,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:47" (3/3) ... [2021-11-21 01:27:47,877 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-2.i [2021-11-21 01:27:47,884 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:27:47,884 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-21 01:27:47,955 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:27:47,968 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:27:47,968 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-21 01:27:48,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 156 states have internal predecessors, (247), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 01:27:48,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:27:48,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:48,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:27:48,010 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:27:48,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:48,020 INFO L85 PathProgramCache]: Analyzing trace with hash 31387996, now seen corresponding path program 1 times [2021-11-21 01:27:48,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:27:48,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090543667] [2021-11-21 01:27:48,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:48,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:27:48,214 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:27:48,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1561764551] [2021-11-21 01:27:48,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:48,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:27:48,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:27:48,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:27:48,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:27:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:48,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 01:27:48,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:48,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:27:48,590 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 01:27:48,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2021-11-21 01:27:48,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:27:48,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:27:48,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-21 01:27:53,021 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:27:53,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 38 [2021-11-21 01:27:53,038 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:27:53,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2021-11-21 01:27:53,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-21 01:27:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:53,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:27:53,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:27:53,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090543667] [2021-11-21 01:27:53,082 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:27:53,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561764551] [2021-11-21 01:27:53,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561764551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:53,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:53,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:27:53,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746901391] [2021-11-21 01:27:53,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:53,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:27:53,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:27:53,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:27:53,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:27:53,173 INFO L87 Difference]: Start difference. First operand has 176 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 156 states have internal predecessors, (247), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:54,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:54,419 INFO L93 Difference]: Finished difference Result 354 states and 563 transitions. [2021-11-21 01:27:54,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:27:54,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 01:27:54,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:54,436 INFO L225 Difference]: With dead ends: 354 [2021-11-21 01:27:54,436 INFO L226 Difference]: Without dead ends: 178 [2021-11-21 01:27:54,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:27:54,444 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 2 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:54,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 481 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 65 Unchecked, 1.2s Time] [2021-11-21 01:27:54,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-21 01:27:54,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2021-11-21 01:27:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 158 states have internal predecessors, (179), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-21 01:27:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 209 transitions. [2021-11-21 01:27:54,542 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 209 transitions. Word has length 4 [2021-11-21 01:27:54,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:54,543 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 209 transitions. [2021-11-21 01:27:54,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:54,545 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 209 transitions. [2021-11-21 01:27:54,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:27:54,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:54,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:54,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:27:54,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 01:27:54,760 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:27:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:54,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2011390594, now seen corresponding path program 1 times [2021-11-21 01:27:54,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:27:54,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105495194] [2021-11-21 01:27:54,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:54,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:27:54,822 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:27:54,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [170833181] [2021-11-21 01:27:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:54,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:27:54,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:27:54,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:27:54,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:27:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:55,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:27:55,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:55,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:27:55,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:27:55,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105495194] [2021-11-21 01:27:55,144 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:27:55,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170833181] [2021-11-21 01:27:55,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170833181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:55,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:55,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:27:55,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474025230] [2021-11-21 01:27:55,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:55,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:27:55,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:27:55,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:27:55,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:27:55,147 INFO L87 Difference]: Start difference. First operand 177 states and 209 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:57,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:57,000 INFO L93 Difference]: Finished difference Result 311 states and 367 transitions. [2021-11-21 01:27:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:27:57,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 01:27:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:57,008 INFO L225 Difference]: With dead ends: 311 [2021-11-21 01:27:57,008 INFO L226 Difference]: Without dead ends: 309 [2021-11-21 01:27:57,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:27:57,010 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 139 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:57,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 528 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 01:27:57,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-21 01:27:57,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 299. [2021-11-21 01:27:57,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 255 states have (on average 1.2352941176470589) internal successors, (315), 270 states have internal predecessors, (315), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-21 01:27:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 363 transitions. [2021-11-21 01:27:57,045 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 363 transitions. Word has length 18 [2021-11-21 01:27:57,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:57,045 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 363 transitions. [2021-11-21 01:27:57,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 363 transitions. [2021-11-21 01:27:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 01:27:57,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:57,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:57,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:27:57,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:27:57,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:27:57,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:57,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2071401060, now seen corresponding path program 1 times [2021-11-21 01:27:57,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:27:57,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541404469] [2021-11-21 01:27:57,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:57,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:27:57,295 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:27:57,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978142497] [2021-11-21 01:27:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:57,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:27:57,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:27:57,297 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:27:57,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:27:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:57,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:27:57,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:57,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:27:57,608 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:27:57,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541404469] [2021-11-21 01:27:57,608 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:27:57,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978142497] [2021-11-21 01:27:57,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978142497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:57,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:57,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:27:57,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957991833] [2021-11-21 01:27:57,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:57,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:27:57,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:27:57,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:27:57,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:27:57,622 INFO L87 Difference]: Start difference. First operand 299 states and 363 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:59,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:59,169 INFO L93 Difference]: Finished difference Result 537 states and 655 transitions. [2021-11-21 01:27:59,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:27:59,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-21 01:27:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:59,179 INFO L225 Difference]: With dead ends: 537 [2021-11-21 01:27:59,179 INFO L226 Difference]: Without dead ends: 535 [2021-11-21 01:27:59,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:27:59,181 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 174 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:59,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 535 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:27:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-21 01:27:59,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 524. [2021-11-21 01:27:59,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 459 states have (on average 1.2352941176470589) internal successors, (567), 477 states have internal predecessors, (567), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2021-11-21 01:27:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 652 transitions. [2021-11-21 01:27:59,222 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 652 transitions. Word has length 19 [2021-11-21 01:27:59,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:59,223 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 652 transitions. [2021-11-21 01:27:59,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:59,223 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 652 transitions. [2021-11-21 01:27:59,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:27:59,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:59,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:59,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 01:27:59,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:27:59,452 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:27:59,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:59,452 INFO L85 PathProgramCache]: Analyzing trace with hash 949063289, now seen corresponding path program 1 times [2021-11-21 01:27:59,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:27:59,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397250591] [2021-11-21 01:27:59,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:59,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:27:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:59,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:59,553 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:27:59,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397250591] [2021-11-21 01:27:59,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397250591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:59,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:59,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:27:59,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159323319] [2021-11-21 01:27:59,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:59,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:27:59,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:27:59,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:27:59,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:27:59,556 INFO L87 Difference]: Start difference. First operand 524 states and 652 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:28:01,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:01,540 INFO L93 Difference]: Finished difference Result 871 states and 1093 transitions. [2021-11-21 01:28:01,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:28:01,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 01:28:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:01,552 INFO L225 Difference]: With dead ends: 871 [2021-11-21 01:28:01,552 INFO L226 Difference]: Without dead ends: 702 [2021-11-21 01:28:01,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:28:01,554 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 67 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:01,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 489 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 01:28:01,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-11-21 01:28:01,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 524. [2021-11-21 01:28:01,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 459 states have (on average 1.233115468409586) internal successors, (566), 477 states have internal predecessors, (566), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2021-11-21 01:28:01,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 651 transitions. [2021-11-21 01:28:01,597 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 651 transitions. Word has length 24 [2021-11-21 01:28:01,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:01,598 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 651 transitions. [2021-11-21 01:28:01,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:28:01,598 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 651 transitions. [2021-11-21 01:28:01,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:28:01,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:01,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:28:01,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:28:01,601 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:28:01,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:01,601 INFO L85 PathProgramCache]: Analyzing trace with hash -12375280, now seen corresponding path program 1 times [2021-11-21 01:28:01,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:01,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112675441] [2021-11-21 01:28:01,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:01,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:01,625 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:28:01,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912807361] [2021-11-21 01:28:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:01,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:01,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:28:01,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:28:01,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:28:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:01,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:28:01,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:28:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:28:02,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:28:02,023 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:02,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112675441] [2021-11-21 01:28:02,024 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:28:02,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912807361] [2021-11-21 01:28:02,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912807361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:02,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:28:02,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:28:02,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519200665] [2021-11-21 01:28:02,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:02,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:28:02,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:02,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:28:02,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:28:02,027 INFO L87 Difference]: Start difference. First operand 524 states and 651 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:28:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:03,150 INFO L93 Difference]: Finished difference Result 550 states and 671 transitions. [2021-11-21 01:28:03,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:28:03,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-21 01:28:03,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:03,161 INFO L225 Difference]: With dead ends: 550 [2021-11-21 01:28:03,161 INFO L226 Difference]: Without dead ends: 549 [2021-11-21 01:28:03,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:28:03,163 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 144 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:03,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 359 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-21 01:28:03,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-11-21 01:28:03,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 539. [2021-11-21 01:28:03,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 469 states have (on average 1.2302771855010661) internal successors, (577), 488 states have internal predecessors, (577), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2021-11-21 01:28:03,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 668 transitions. [2021-11-21 01:28:03,216 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 668 transitions. Word has length 27 [2021-11-21 01:28:03,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:03,217 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 668 transitions. [2021-11-21 01:28:03,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:28:03,218 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 668 transitions. [2021-11-21 01:28:03,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:28:03,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:03,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:28:03,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:28:03,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:03,447 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:28:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash -383633619, now seen corresponding path program 1 times [2021-11-21 01:28:03,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:03,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866632396] [2021-11-21 01:28:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:03,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:03,469 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:28:03,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051511035] [2021-11-21 01:28:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:03,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:03,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:28:03,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:28:03,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:28:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:03,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:28:03,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:28:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:28:03,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:28:03,800 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:03,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866632396] [2021-11-21 01:28:03,800 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:28:03,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051511035] [2021-11-21 01:28:03,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051511035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:03,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:28:03,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:28:03,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429798316] [2021-11-21 01:28:03,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:03,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:28:03,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:03,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:28:03,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:28:03,803 INFO L87 Difference]: Start difference. First operand 539 states and 668 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:28:05,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:28:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:05,457 INFO L93 Difference]: Finished difference Result 539 states and 668 transitions. [2021-11-21 01:28:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:28:05,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-21 01:28:05,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:05,468 INFO L225 Difference]: With dead ends: 539 [2021-11-21 01:28:05,468 INFO L226 Difference]: Without dead ends: 538 [2021-11-21 01:28:05,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:28:05,470 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:05,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 172 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 01:28:05,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-21 01:28:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-11-21 01:28:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 469 states have (on average 1.2260127931769722) internal successors, (575), 487 states have internal predecessors, (575), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2021-11-21 01:28:05,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 666 transitions. [2021-11-21 01:28:05,515 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 666 transitions. Word has length 28 [2021-11-21 01:28:05,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:05,516 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 666 transitions. [2021-11-21 01:28:05,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:28:05,516 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 666 transitions. [2021-11-21 01:28:05,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:28:05,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:05,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:28:05,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:28:05,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-21 01:28:05,744 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:28:05,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash -259574453, now seen corresponding path program 1 times [2021-11-21 01:28:05,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:05,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255816694] [2021-11-21 01:28:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:05,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:05,777 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:28:05,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549696679] [2021-11-21 01:28:05,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:05,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:05,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:28:05,787 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:28:05,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:28:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:05,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:28:05,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:28:06,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:28:06,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:28:06,103 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:06,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255816694] [2021-11-21 01:28:06,104 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:28:06,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549696679] [2021-11-21 01:28:06,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549696679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:06,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:28:06,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:28:06,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274903960] [2021-11-21 01:28:06,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:06,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:28:06,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:28:06,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:28:06,106 INFO L87 Difference]: Start difference. First operand 538 states and 666 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:28:08,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:28:08,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:08,184 INFO L93 Difference]: Finished difference Result 1000 states and 1234 transitions. [2021-11-21 01:28:08,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:28:08,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 01:28:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:08,193 INFO L225 Difference]: With dead ends: 1000 [2021-11-21 01:28:08,193 INFO L226 Difference]: Without dead ends: 467 [2021-11-21 01:28:08,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:28:08,195 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:08,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 332 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 01:28:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-11-21 01:28:08,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 415. [2021-11-21 01:28:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 363 states have (on average 1.2148760330578512) internal successors, (441), 379 states have internal predecessors, (441), 30 states have call successors, (30), 11 states have call predecessors, (30), 9 states have return successors, (33), 26 states have call predecessors, (33), 30 states have call successors, (33) [2021-11-21 01:28:08,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 504 transitions. [2021-11-21 01:28:08,220 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 504 transitions. Word has length 28 [2021-11-21 01:28:08,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:08,221 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 504 transitions. [2021-11-21 01:28:08,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:28:08,221 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 504 transitions. [2021-11-21 01:28:08,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:28:08,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:08,223 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:28:08,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:28:08,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-21 01:28:08,436 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:28:08,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:08,436 INFO L85 PathProgramCache]: Analyzing trace with hash 107922983, now seen corresponding path program 1 times [2021-11-21 01:28:08,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:08,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83058654] [2021-11-21 01:28:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:08,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:08,454 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:28:08,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224933468] [2021-11-21 01:28:08,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:08,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:08,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:28:08,466 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:28:08,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 01:28:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:08,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 01:28:08,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:28:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:28:08,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:28:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:28:09,225 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:09,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83058654] [2021-11-21 01:28:09,226 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:28:09,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224933468] [2021-11-21 01:28:09,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224933468] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:28:09,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [757674652] [2021-11-21 01:28:09,252 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-21 01:28:09,252 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:28:09,257 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:28:09,263 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:28:09,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:28:09,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:09,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:28:09,404 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 01:28:09,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-21 01:28:09,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2021-11-21 01:28:09,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:09,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-21 01:28:09,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:28:09,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:09,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2021-11-21 01:28:09,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:28:09,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:28:09,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:09,712 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:28:09,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 01:28:09,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:09,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:09,801 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:28:09,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:28:10,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,078 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 01:28:10,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 01:28:10,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:28:10,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,177 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:28:10,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:28:10,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2021-11-21 01:28:10,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-21 01:28:10,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:28:10,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:28:10,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:28:10,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-21 01:28:10,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:10,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 01:28:13,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:28:13,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-21 01:28:13,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-21 01:28:13,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-21 01:28:13,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 01:28:13,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:13,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:28:14,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:28:14,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:28:14,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,336 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:28:14,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-21 01:28:14,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,401 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:28:14,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-21 01:28:14,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 01:28:14,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:14,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 01:28:14,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:28:14,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:28:14,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:28:15,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:28:15,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:28:15,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:28:15,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,281 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 01:28:15,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 70 [2021-11-21 01:28:15,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2021-11-21 01:28:15,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:28:15,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,428 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-21 01:28:15,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:28:15,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:28:15,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:15,554 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 01:28:15,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:28:16,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,088 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:28:16,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 01:28:16,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,164 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 01:28:16,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:28:16,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:28:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,241 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:28:16,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 01:28:16,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-11-21 01:28:16,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-21 01:28:16,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:16,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:28:16,684 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-21 01:28:16,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 306 treesize of output 272 [2021-11-21 01:28:16,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 287 treesize of output 283 [2021-11-21 01:28:16,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 328 treesize of output 324 [2021-11-21 01:28:19,190 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-21 01:28:20,578 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 01:28:21,933 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:28:25,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [757674652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:25,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:28:25,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-21 01:28:25,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348399273] [2021-11-21 01:28:25,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:25,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-21 01:28:25,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:25,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-21 01:28:25,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 01:28:25,903 INFO L87 Difference]: Start difference. First operand 415 states and 504 transitions. Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:28:29,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:28:32,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:28:33,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:33,654 INFO L93 Difference]: Finished difference Result 819 states and 998 transitions. [2021-11-21 01:28:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 01:28:33,655 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-21 01:28:33,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:33,658 INFO L225 Difference]: With dead ends: 819 [2021-11-21 01:28:33,659 INFO L226 Difference]: Without dead ends: 412 [2021-11-21 01:28:33,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 01:28:33,661 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 14 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 446 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:33,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1113 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 440 Invalid, 0 Unknown, 446 Unchecked, 7.7s Time] [2021-11-21 01:28:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-21 01:28:33,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-11-21 01:28:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 360 states have (on average 1.211111111111111) internal successors, (436), 375 states have internal predecessors, (436), 30 states have call successors, (30), 11 states have call predecessors, (30), 9 states have return successors, (33), 26 states have call predecessors, (33), 30 states have call successors, (33) [2021-11-21 01:28:33,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 499 transitions. [2021-11-21 01:28:33,700 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 499 transitions. Word has length 34 [2021-11-21 01:28:33,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:33,701 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 499 transitions. [2021-11-21 01:28:33,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:28:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 499 transitions. [2021-11-21 01:28:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-21 01:28:33,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:33,704 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:28:33,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:28:33,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:33,930 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:28:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:33,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1157443849, now seen corresponding path program 1 times [2021-11-21 01:28:33,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:33,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954894873] [2021-11-21 01:28:33,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:33,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:33,966 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:28:33,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88083762] [2021-11-21 01:28:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:33,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:33,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:28:33,977 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:28:33,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 01:28:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:34,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:28:34,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:28:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:28:34,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:28:34,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:34,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954894873] [2021-11-21 01:28:34,316 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:28:34,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88083762] [2021-11-21 01:28:34,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88083762] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:34,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:28:34,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:28:34,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168777946] [2021-11-21 01:28:34,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:34,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:28:34,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:28:34,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:28:34,323 INFO L87 Difference]: Start difference. First operand 412 states and 499 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:28:37,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:28:37,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:28:37,559 INFO L93 Difference]: Finished difference Result 760 states and 929 transitions. [2021-11-21 01:28:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:28:37,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2021-11-21 01:28:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:28:37,572 INFO L225 Difference]: With dead ends: 760 [2021-11-21 01:28:37,572 INFO L226 Difference]: Without dead ends: 758 [2021-11-21 01:28:37,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:28:37,574 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 183 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:28:37,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 798 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 01:28:37,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-11-21 01:28:37,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 743. [2021-11-21 01:28:37,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 665 states have (on average 1.21203007518797) internal successors, (806), 681 states have internal predecessors, (806), 51 states have call successors, (51), 18 states have call predecessors, (51), 14 states have return successors, (62), 43 states have call predecessors, (62), 51 states have call successors, (62) [2021-11-21 01:28:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 919 transitions. [2021-11-21 01:28:37,617 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 919 transitions. Word has length 37 [2021-11-21 01:28:37,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:28:37,618 INFO L470 AbstractCegarLoop]: Abstraction has 743 states and 919 transitions. [2021-11-21 01:28:37,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:28:37,618 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 919 transitions. [2021-11-21 01:28:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 01:28:37,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:28:37,620 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:28:37,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 01:28:37,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:37,835 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:28:37,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:28:37,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1785745275, now seen corresponding path program 1 times [2021-11-21 01:28:37,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:28:37,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899251727] [2021-11-21 01:28:37,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:37,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:28:37,867 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:28:37,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382934458] [2021-11-21 01:28:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:28:37,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:28:37,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:28:37,878 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:28:37,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 01:28:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:28:38,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:28:38,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:28:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:28:38,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:28:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 01:28:38,493 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:28:38,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899251727] [2021-11-21 01:28:38,494 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:28:38,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382934458] [2021-11-21 01:28:38,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382934458] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:28:38,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [59315922] [2021-11-21 01:28:38,498 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 01:28:38,499 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:28:38,499 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:28:38,500 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:28:38,500 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:28:38,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:28:38,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:38,554 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:28:38,580 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 01:28:38,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-21 01:28:38,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2021-11-21 01:28:38,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:38,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2021-11-21 01:28:38,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:38,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-21 01:28:38,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-11-21 01:28:38,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:38,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:38,845 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:28:38,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:28:38,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:38,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:28:38,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:28:39,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:28:39,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,150 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 01:28:39,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 01:28:39,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,255 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:28:39,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 45 [2021-11-21 01:28:39,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-21 01:28:39,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,397 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:28:39,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:28:39,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:28:39,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:28:39,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-21 01:28:39,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:39,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 01:28:40,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:28:42,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:28:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-21 01:28:42,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-21 01:28:42,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-21 01:28:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 01:28:42,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:28:42,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,518 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 [2021-11-21 01:28:42,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:28:42,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,805 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:28:42,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-21 01:28:42,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,885 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:28:42,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-21 01:28:42,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 01:28:42,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:42,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 01:28:43,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:28:43,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:28:43,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:28:43,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:28:43,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:28:43,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:28:43,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:28:43,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,616 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 01:28:43,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:28:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,670 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 01:28:43,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 70 [2021-11-21 01:28:43,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2021-11-21 01:28:43,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:28:43,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:43,799 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 01:28:43,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:28:44,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:28:44,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:28:44,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,241 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:28:44,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 01:28:44,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,316 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 01:28:44,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:28:44,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,349 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:28:44,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 01:28:44,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-21 01:28:44,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:44,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-11-21 01:28:44,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 230 [2021-11-21 01:28:44,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 253 [2021-11-21 01:28:44,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:28:46,367 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-21 01:28:47,565 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 01:28:49,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,190 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:28:49,190 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 197 treesize of output 181 [2021-11-21 01:28:49,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,218 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:28:49,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 172 treesize of output 156 [2021-11-21 01:28:49,257 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:28:49,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 147 treesize of output 139 [2021-11-21 01:28:49,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:49,993 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:28:49,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-21 01:28:50,027 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:28:50,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 172 treesize of output 164 [2021-11-21 01:28:50,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:50,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:50,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:50,058 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:28:50,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-21 01:28:51,255 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:28:51,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 197 treesize of output 189 [2021-11-21 01:28:51,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:51,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:51,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:51,275 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:28:51,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 189 treesize of output 173 [2021-11-21 01:28:51,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:51,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:51,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:51,296 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:28:51,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-21 01:28:51,568 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-21 01:28:51,753 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:28:55,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [59315922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:28:55,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:28:55,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-21 01:28:55,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608616685] [2021-11-21 01:28:55,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:28:55,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:28:55,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:28:55,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:28:55,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 01:28:55,901 INFO L87 Difference]: Start difference. First operand 743 states and 919 transitions. Second operand has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:29:05,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:29:05,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:29:05,819 INFO L93 Difference]: Finished difference Result 1458 states and 1811 transitions. [2021-11-21 01:29:05,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-21 01:29:05,820 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2021-11-21 01:29:05,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:29:05,825 INFO L225 Difference]: With dead ends: 1458 [2021-11-21 01:29:05,826 INFO L226 Difference]: Without dead ends: 745 [2021-11-21 01:29:05,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 01:29:05,829 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 9 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 646 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:29:05,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1527 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 665 Invalid, 0 Unknown, 646 Unchecked, 9.8s Time] [2021-11-21 01:29:05,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-11-21 01:29:05,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2021-11-21 01:29:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 667 states have (on average 1.2113943028485756) internal successors, (808), 683 states have internal predecessors, (808), 51 states have call successors, (51), 18 states have call predecessors, (51), 14 states have return successors, (62), 43 states have call predecessors, (62), 51 states have call successors, (62) [2021-11-21 01:29:05,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 921 transitions. [2021-11-21 01:29:05,868 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 921 transitions. Word has length 46 [2021-11-21 01:29:05,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:29:05,869 INFO L470 AbstractCegarLoop]: Abstraction has 745 states and 921 transitions. [2021-11-21 01:29:05,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:29:05,869 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 921 transitions. [2021-11-21 01:29:05,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:29:05,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:29:05,870 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:29:05,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-21 01:29:06,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-21 01:29:06,095 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:29:06,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:29:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash 930438946, now seen corresponding path program 1 times [2021-11-21 01:29:06,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:29:06,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999346574] [2021-11-21 01:29:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:06,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:29:06,132 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:29:06,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698678691] [2021-11-21 01:29:06,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:29:06,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:29:06,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:29:06,137 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:29:06,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e3296f-b0f2-4e8a-8417-5ffcce4094d6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-21 01:29:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:29:06,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:29:06,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:29:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:29:06,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:29:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 01:29:06,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:29:06,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999346574] [2021-11-21 01:29:06,672 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:29:06,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698678691] [2021-11-21 01:29:06,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698678691] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:29:06,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1204636169] [2021-11-21 01:29:06,675 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 01:29:06,676 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:29:06,676 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:29:06,677 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:29:06,677 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:29:06,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:29:06,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:06,742 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:29:06,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 01:29:06,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:29:06,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:06,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:06,796 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:29:06,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:29:06,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:06,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:06,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-21 01:29:06,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-21 01:29:06,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:06,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,027 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-21 01:29:07,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 65 [2021-11-21 01:29:07,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-21 01:29:07,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:29:07,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2021-11-21 01:29:07,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,274 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-21 01:29:07,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 46 [2021-11-21 01:29:07,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:29:07,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,396 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-21 01:29:07,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 01:29:07,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:29:07,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:29:07,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-21 01:29:07,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:07,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 01:29:08,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:29:10,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-21 01:29:10,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2021-11-21 01:29:10,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 72 [2021-11-21 01:29:10,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 01:29:10,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:29:10,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:29:10,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,593 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:29:10,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-21 01:29:10,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,641 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:29:10,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-21 01:29:10,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 01:29:10,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 01:29:10,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:29:10,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:10,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:29:11,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:29:11,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:29:11,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:29:11,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:29:11,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:29:11,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,488 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 01:29:11,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:29:11,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:29:11,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:29:11,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,606 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:29:11,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 01:29:11,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,680 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:29:11,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 01:29:11,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-21 01:29:11,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:11,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-11-21 01:29:12,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:29:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,137 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:29:12,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 01:29:12,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:29:12,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,219 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:29:12,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 01:29:12,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-11-21 01:29:12,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-21 01:29:12,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:12,284 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:29:12,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:29:12,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-21 01:29:12,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:29:12,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:29:13,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:29:13,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:29:13,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:29:13,117 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:29:13,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 136 [2021-11-21 01:29:13,140 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:29:13,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 132 [2021-11-21 01:29:13,164 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:29:13,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 128 [2021-11-21 01:29:13,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:29:13,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:29:13,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:29:13,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 01:29:13,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-21 01:29:14,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 01:29:14,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-21 01:29:16,859 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:29:16,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1526 treesize of output 1147 [2021-11-21 01:29:16,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:18,852 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:29:18,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1583 treesize of output 1349 [2021-11-21 01:29:20,728 INFO L354 Elim1Store]: treesize reduction 1254, result has 33.9 percent of original size [2021-11-21 01:29:20,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 1415 treesize of output 1461 [2021-11-21 01:29:21,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:21,599 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:29:21,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:29:21,703 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:29:22,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:29:22,250 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 01:29:22,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-21 01:34:21,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:34:21,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:34:52,723 WARN L227 SmtUtils]: Spent 30.77s on a formula simplification. DAG size of input: 167 DAG size of output: 89 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:34:52,724 INFO L354 Elim1Store]: treesize reduction 838, result has 27.9 percent of original size [2021-11-21 01:34:52,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 3643 treesize of output 3482