./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/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_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:35:44,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:35:44,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:35:45,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:35:45,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:35:45,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:35:45,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:35:45,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:35:45,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:35:45,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:35:45,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:35:45,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:35:45,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:35:45,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:35:45,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:35:45,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:35:45,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:35:45,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:35:45,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:35:45,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:35:45,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:35:45,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:35:45,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:35:45,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:35:45,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:35:45,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:35:45,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:35:45,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:35:45,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:35:45,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:35:45,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:35:45,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:35:45,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:35:45,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:35:45,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:35:45,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:35:45,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:35:45,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:35:45,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:35:45,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:35:45,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:35:45,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:35:45,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:35:45,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:35:45,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:35:45,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:35:45,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:35:45,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:35:45,154 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:35:45,154 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:35:45,154 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:35:45,154 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:35:45,155 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:35:45,155 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:35:45,155 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:35:45,155 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:35:45,155 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:35:45,155 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:35:45,156 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:35:45,156 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:35:45,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:35:45,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:35:45,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:35:45,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:35:45,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:35:45,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:35:45,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:35:45,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:35:45,158 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:35:45,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:35:45,158 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:35:45,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:35:45,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:35:45,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:35:45,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:45,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:35:45,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:35:45,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:35:45,160 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:35:45,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:35:45,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:35:45,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:35:45,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:35:45,161 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_963e84b3-647f-4349-8b3e-013c723b569d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2021-11-20 23:35:45,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:35:45,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:35:45,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:35:45,474 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:35:45,475 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:35:45,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2021-11-20 23:35:45,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/data/2234306bf/56fb3e2018a04a67a3019e2aa339af8a/FLAG30b590b8d [2021-11-20 23:35:46,190 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:35:46,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2021-11-20 23:35:46,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/data/2234306bf/56fb3e2018a04a67a3019e2aa339af8a/FLAG30b590b8d [2021-11-20 23:35:46,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/data/2234306bf/56fb3e2018a04a67a3019e2aa339af8a [2021-11-20 23:35:46,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:35:46,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:35:46,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:46,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:35:46,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:35:46,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:46" (1/1) ... [2021-11-20 23:35:46,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16cc63bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:46, skipping insertion in model container [2021-11-20 23:35:46,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:46" (1/1) ... [2021-11-20 23:35:46,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:35:46,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:35:47,206 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_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[44118,44131] [2021-11-20 23:35:47,227 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_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[44660,44673] [2021-11-20 23:35:47,326 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_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[56247,56260] [2021-11-20 23:35:47,327 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_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[56368,56381] [2021-11-20 23:35:47,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:47,364 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:35:47,403 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_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[44118,44131] [2021-11-20 23:35:47,406 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_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[44660,44673] [2021-11-20 23:35:47,509 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_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[56247,56260] [2021-11-20 23:35:47,510 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_963e84b3-647f-4349-8b3e-013c723b569d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[56368,56381] [2021-11-20 23:35:47,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:47,606 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:35:47,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47 WrapperNode [2021-11-20 23:35:47,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:47,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:47,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:35:47,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:35:47,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,777 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1199 [2021-11-20 23:35:47,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:47,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:35:47,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:35:47,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:35:47,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:35:47,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:35:47,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:35:47,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:35:47,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (1/1) ... [2021-11-20 23:35:47,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:47,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:47,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:35:47,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:35:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:35:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:35:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:35:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:35:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-20 23:35:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-20 23:35:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:35:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:35:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:35:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:35:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:35:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:35:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-20 23:35:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-20 23:35:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:35:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-20 23:35:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-20 23:35:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:35:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:35:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:35:48,287 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:35:48,289 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:35:49,322 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:35:49,843 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:35:49,844 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-20 23:35:49,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:49 BoogieIcfgContainer [2021-11-20 23:35:49,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:35:49,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:35:49,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:35:49,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:35:49,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:35:46" (1/3) ... [2021-11-20 23:35:49,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4b80dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:49, skipping insertion in model container [2021-11-20 23:35:49,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:47" (2/3) ... [2021-11-20 23:35:49,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4b80dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:49, skipping insertion in model container [2021-11-20 23:35:49,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:49" (3/3) ... [2021-11-20 23:35:49,859 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-2.i [2021-11-20 23:35:49,870 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:35:49,871 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 23:35:49,926 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:35:49,933 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:35:49,934 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-20 23:35:49,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 23:35:49,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 23:35:49,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:49,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:49,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:35:49,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:49,978 INFO L85 PathProgramCache]: Analyzing trace with hash -435450484, now seen corresponding path program 1 times [2021-11-20 23:35:49,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:49,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588819459] [2021-11-20 23:35:49,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:49,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:50,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:50,228 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:50,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588819459] [2021-11-20 23:35:50,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588819459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:50,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:50,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:35:50,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261397398] [2021-11-20 23:35:50,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:50,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:35:50,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:50,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:35:50,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:35:50,284 INFO L87 Difference]: Start difference. First operand has 160 states, 136 states have (on average 1.713235294117647) internal successors, (233), 140 states have internal predecessors, (233), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:50,958 INFO L93 Difference]: Finished difference Result 317 states and 538 transitions. [2021-11-20 23:35:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:35:50,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-20 23:35:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:50,982 INFO L225 Difference]: With dead ends: 317 [2021-11-20 23:35:50,983 INFO L226 Difference]: Without dead ends: 157 [2021-11-20 23:35:50,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:35:50,992 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:50,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 23:35:51,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-20 23:35:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-11-20 23:35:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 134 states have (on average 1.1791044776119404) internal successors, (158), 138 states have internal predecessors, (158), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-20 23:35:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2021-11-20 23:35:51,079 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 7 [2021-11-20 23:35:51,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:51,080 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2021-11-20 23:35:51,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2021-11-20 23:35:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 23:35:51,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:51,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:51,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:35:51,082 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:35:51,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:51,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1156235943, now seen corresponding path program 1 times [2021-11-20 23:35:51,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:51,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791226231] [2021-11-20 23:35:51,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:51,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:51,149 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:51,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791226231] [2021-11-20 23:35:51,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791226231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:51,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:51,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:35:51,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325135889] [2021-11-20 23:35:51,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:51,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:51,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:51,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:51,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:51,155 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:52,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:35:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:53,401 INFO L93 Difference]: Finished difference Result 324 states and 391 transitions. [2021-11-20 23:35:53,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:35:53,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-20 23:35:53,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:53,410 INFO L225 Difference]: With dead ends: 324 [2021-11-20 23:35:53,410 INFO L226 Difference]: Without dead ends: 232 [2021-11-20 23:35:53,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:35:53,414 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 74 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:53,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 444 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 23:35:53,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-20 23:35:53,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 159. [2021-11-20 23:35:53,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.1764705882352942) internal successors, (160), 140 states have internal predecessors, (160), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-20 23:35:53,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 190 transitions. [2021-11-20 23:35:53,451 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 190 transitions. Word has length 9 [2021-11-20 23:35:53,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:53,452 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 190 transitions. [2021-11-20 23:35:53,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 190 transitions. [2021-11-20 23:35:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 23:35:53,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:53,457 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] [2021-11-20 23:35:53,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:35:53,457 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:35:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:53,459 INFO L85 PathProgramCache]: Analyzing trace with hash 618014543, now seen corresponding path program 1 times [2021-11-20 23:35:53,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:53,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289435344] [2021-11-20 23:35:53,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:53,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:53,515 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:35:53,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489978246] [2021-11-20 23:35:53,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:53,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:53,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:53,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:35:53,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:35:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:54,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:35:54,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:54,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:35:54,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:54,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289435344] [2021-11-20 23:35:54,165 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:35:54,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489978246] [2021-11-20 23:35:54,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489978246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:54,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:54,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:35:54,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420843730] [2021-11-20 23:35:54,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:54,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:35:54,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:54,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:35:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:35:54,193 INFO L87 Difference]: Start difference. First operand 159 states and 190 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:56,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:56,384 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2021-11-20 23:35:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:35:56,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 23:35:56,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:56,386 INFO L225 Difference]: With dead ends: 170 [2021-11-20 23:35:56,387 INFO L226 Difference]: Without dead ends: 168 [2021-11-20 23:35:56,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:35:56,388 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 11 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:56,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 778 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 23:35:56,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-20 23:35:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-20 23:35:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 142 states have (on average 1.176056338028169) internal successors, (167), 147 states have internal predecessors, (167), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 23:35:56,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2021-11-20 23:35:56,420 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 20 [2021-11-20 23:35:56,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:56,421 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2021-11-20 23:35:56,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:56,421 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2021-11-20 23:35:56,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:35:56,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:56,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:56,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:56,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:56,623 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:35:56,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:56,624 INFO L85 PathProgramCache]: Analyzing trace with hash -746982808, now seen corresponding path program 1 times [2021-11-20 23:35:56,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:56,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44989798] [2021-11-20 23:35:56,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:56,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:56,658 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:35:56,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651608847] [2021-11-20 23:35:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:56,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:56,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:56,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:35:56,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:35:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:56,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:35:56,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:57,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:35:57,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:57,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44989798] [2021-11-20 23:35:57,108 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:35:57,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651608847] [2021-11-20 23:35:57,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651608847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:57,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:57,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:35:57,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781086359] [2021-11-20 23:35:57,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:57,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:35:57,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:57,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:35:57,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:35:57,112 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:58,169 INFO L93 Difference]: Finished difference Result 408 states and 486 transitions. [2021-11-20 23:35:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:35:58,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 23:35:58,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:58,173 INFO L225 Difference]: With dead ends: 408 [2021-11-20 23:35:58,173 INFO L226 Difference]: Without dead ends: 243 [2021-11-20 23:35:58,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:35:58,177 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 68 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:58,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 310 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 23:35:58,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-20 23:35:58,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 211. [2021-11-20 23:35:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 185 states have (on average 1.1675675675675676) internal successors, (216), 190 states have internal predecessors, (216), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 23:35:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 248 transitions. [2021-11-20 23:35:58,201 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 248 transitions. Word has length 28 [2021-11-20 23:35:58,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:58,202 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 248 transitions. [2021-11-20 23:35:58,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 248 transitions. [2021-11-20 23:35:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 23:35:58,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:58,204 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] [2021-11-20 23:35:58,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:58,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:58,432 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:35:58,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1769840484, now seen corresponding path program 1 times [2021-11-20 23:35:58,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:58,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038099026] [2021-11-20 23:35:58,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:58,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:58,457 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:35:58,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980527493] [2021-11-20 23:35:58,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:58,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:58,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:58,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:35:58,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:35:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:58,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 23:35:58,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:58,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:35:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:59,074 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:59,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038099026] [2021-11-20 23:35:59,074 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:35:59,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980527493] [2021-11-20 23:35:59,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980527493] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 23:35:59,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:35:59,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2021-11-20 23:35:59,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275154670] [2021-11-20 23:35:59,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:59,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 23:35:59,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:59,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 23:35:59,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:35:59,078 INFO L87 Difference]: Start difference. First operand 211 states and 248 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:36:00,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:00,544 INFO L93 Difference]: Finished difference Result 801 states and 954 transitions. [2021-11-20 23:36:00,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:36:00,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2021-11-20 23:36:00,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:00,552 INFO L225 Difference]: With dead ends: 801 [2021-11-20 23:36:00,552 INFO L226 Difference]: Without dead ends: 606 [2021-11-20 23:36:00,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:36:00,555 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 961 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:00,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [961 Valid, 493 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 23:36:00,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-20 23:36:00,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 356. [2021-11-20 23:36:00,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 320 states have (on average 1.175) internal successors, (376), 326 states have internal predecessors, (376), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2021-11-20 23:36:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 421 transitions. [2021-11-20 23:36:00,591 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 421 transitions. Word has length 32 [2021-11-20 23:36:00,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:00,592 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 421 transitions. [2021-11-20 23:36:00,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:36:00,592 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 421 transitions. [2021-11-20 23:36:00,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 23:36:00,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:00,596 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:00,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:36:00,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:00,820 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:36:00,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:00,820 INFO L85 PathProgramCache]: Analyzing trace with hash -498476679, now seen corresponding path program 1 times [2021-11-20 23:36:00,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:00,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202357068] [2021-11-20 23:36:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:00,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:00,845 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:36:00,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216319017] [2021-11-20 23:36:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:00,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:00,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:36:00,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:36:00,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:36:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:01,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:36:01,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:36:01,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 23:36:01,282 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 15 treesize of output 7 [2021-11-20 23:36:01,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:36:01,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:36:01,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:01,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202357068] [2021-11-20 23:36:01,294 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:36:01,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216319017] [2021-11-20 23:36:01,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216319017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:01,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:01,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:36:01,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673923981] [2021-11-20 23:36:01,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:01,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:36:01,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:01,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:36:01,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:36:01,298 INFO L87 Difference]: Start difference. First operand 356 states and 421 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 23:36:02,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:03,981 INFO L93 Difference]: Finished difference Result 513 states and 616 transitions. [2021-11-20 23:36:03,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:03,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2021-11-20 23:36:03,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:03,989 INFO L225 Difference]: With dead ends: 513 [2021-11-20 23:36:03,989 INFO L226 Difference]: Without dead ends: 446 [2021-11-20 23:36:03,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:36:03,991 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 60 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:03,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 434 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 23:36:03,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-11-20 23:36:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2021-11-20 23:36:04,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2021-11-20 23:36:04,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 425 transitions. [2021-11-20 23:36:04,014 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 425 transitions. Word has length 57 [2021-11-20 23:36:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:04,015 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 425 transitions. [2021-11-20 23:36:04,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 23:36:04,016 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 425 transitions. [2021-11-20 23:36:04,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 23:36:04,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:04,019 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:04,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-20 23:36:04,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 23:36:04,236 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:36:04,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:04,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1419302876, now seen corresponding path program 1 times [2021-11-20 23:36:04,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:04,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255463575] [2021-11-20 23:36:04,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:04,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:04,283 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:36:04,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769657412] [2021-11-20 23:36:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:04,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:04,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:36:04,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:36:04,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:36:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:04,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:36:04,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:36:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 23:36:04,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:36:04,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:04,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255463575] [2021-11-20 23:36:04,774 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:36:04,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769657412] [2021-11-20 23:36:04,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769657412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:04,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:04,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:36:04,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029167291] [2021-11-20 23:36:04,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:04,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:36:04,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:04,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:36:04,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:36:04,781 INFO L87 Difference]: Start difference. First operand 360 states and 425 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 23:36:06,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:06,272 INFO L93 Difference]: Finished difference Result 688 states and 814 transitions. [2021-11-20 23:36:06,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:36:06,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2021-11-20 23:36:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:06,275 INFO L225 Difference]: With dead ends: 688 [2021-11-20 23:36:06,275 INFO L226 Difference]: Without dead ends: 360 [2021-11-20 23:36:06,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:36:06,278 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 17 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:06,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 545 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:36:06,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-20 23:36:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-11-20 23:36:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 324 states have (on average 1.1728395061728396) internal successors, (380), 330 states have internal predecessors, (380), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-20 23:36:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2021-11-20 23:36:06,301 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 64 [2021-11-20 23:36:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:06,302 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2021-11-20 23:36:06,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 23:36:06,302 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2021-11-20 23:36:06,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-20 23:36:06,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:06,305 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:06,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:36:06,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:06,520 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:36:06,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:06,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1031523685, now seen corresponding path program 1 times [2021-11-20 23:36:06,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:06,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949224838] [2021-11-20 23:36:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:06,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:06,539 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:36:06,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952545044] [2021-11-20 23:36:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:06,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:06,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:36:06,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:36:06,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 23:36:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:07,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-20 23:36:07,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:36:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 23:36:07,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:36:07,542 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:07,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949224838] [2021-11-20 23:36:07,543 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:36:07,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952545044] [2021-11-20 23:36:07,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952545044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:36:07,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:36:07,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:36:07,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266993413] [2021-11-20 23:36:07,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:36:07,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:36:07,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:36:07,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:36:07,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:36:07,546 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-20 23:36:10,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:36:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:12,519 INFO L93 Difference]: Finished difference Result 692 states and 821 transitions. [2021-11-20 23:36:12,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 23:36:12,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2021-11-20 23:36:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:12,536 INFO L225 Difference]: With dead ends: 692 [2021-11-20 23:36:12,536 INFO L226 Difference]: Without dead ends: 363 [2021-11-20 23:36:12,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:36:12,538 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 14 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:12,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1008 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-11-20 23:36:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2021-11-20 23:36:12,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2021-11-20 23:36:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 326 states have (on average 1.1748466257668713) internal successors, (383), 333 states have internal predecessors, (383), 22 states have call successors, (22), 10 states have call predecessors, (22), 11 states have return successors, (23), 19 states have call predecessors, (23), 22 states have call successors, (23) [2021-11-20 23:36:12,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2021-11-20 23:36:12,570 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 69 [2021-11-20 23:36:12,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:12,570 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2021-11-20 23:36:12,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-20 23:36:12,571 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2021-11-20 23:36:12,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-20 23:36:12,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:12,572 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:36:12,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 23:36:12,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:12,772 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-20 23:36:12,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:12,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1542696511, now seen corresponding path program 1 times [2021-11-20 23:36:12,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:12,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42621612] [2021-11-20 23:36:12,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:12,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:12,790 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:36:12,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870217396] [2021-11-20 23:36:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:12,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:12,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:36:12,792 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:36:12,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_963e84b3-647f-4349-8b3e-013c723b569d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 23:36:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:13,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-20 23:36:13,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:36:13,545 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:36:13,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:36:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-20 23:36:13,890 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:13,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42621612] [2021-11-20 23:36:13,890 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:36:13,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870217396] [2021-11-20 23:36:13,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870217396] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:36:13,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [316223067] [2021-11-20 23:36:13,920 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2021-11-20 23:36:13,920 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:36:13,925 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:36:13,931 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:36:13,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:36:14,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:36:14,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,054 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:36:14,075 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-20 23:36:14,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-20 23:36:14,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2021-11-20 23:36:14,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,140 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 23 treesize of output 17 [2021-11-20 23:36:14,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-20 23:36:14,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-11-20 23:36:14,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:36:14,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,332 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:36:14,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-20 23:36:14,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,411 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:36:14,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:36:14,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,686 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-20 23:36:14,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-20 23:36:14,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,785 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 22 treesize of output 7 [2021-11-20 23:36:14,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,807 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-20 23:36:14,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-20 23:36:14,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,853 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 58 treesize of output 56 [2021-11-20 23:36:14,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,865 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 55 treesize of output 58 [2021-11-20 23:36:14,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:14,931 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 22 treesize of output 7 [2021-11-20 23:36:17,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:36:17,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:36:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-20 23:36:17,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-20 23:36:17,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-20 23:36:17,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-20 23:36:17,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:36:17,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,821 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:36:17,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-20 23:36:17,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,861 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-20 23:36:17,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-20 23:36:17,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-20 23:36:17,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:17,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-20 23:36:18,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:36:18,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:36:18,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-20 23:36:18,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:36:18,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-20 23:36:18,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:36:18,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:36:18,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:36:18,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,793 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:36:18,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:36:18,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,873 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:36:18,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:36:18,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-20 23:36:18,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,906 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 37 treesize of output 19 [2021-11-20 23:36:18,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:18,957 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:36:18,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:36:19,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:36:19,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,439 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-20 23:36:19,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-20 23:36:19,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:36:19,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,537 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-20 23:36:19,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 23:36:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,600 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 23:36:19,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-20 23:36:19,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:19,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-11-20 23:36:19,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-20 23:36:19,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 64 treesize of output 48 [2021-11-20 23:36:19,756 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 45 treesize of output 41 [2021-11-20 23:36:19,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 23:36:20,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:36:20,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:36:20,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:36:20,565 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-20 23:36:20,565 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 141 treesize of output 140 [2021-11-20 23:36:20,585 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:36:20,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 136 [2021-11-20 23:36:20,604 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:36:20,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 132 [2021-11-20 23:36:20,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:36:20,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:36:20,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:36:20,890 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 71 treesize of output 35 [2021-11-20 23:36:20,900 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 32 treesize of output 23 [2021-11-20 23:36:20,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-20 23:36:21,378 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 71 treesize of output 35 [2021-11-20 23:36:21,387 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 32 treesize of output 23 [2021-11-20 23:36:21,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-20 23:36:23,134 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:36:23,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1526 treesize of output 1147 [2021-11-20 23:36:23,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:25,018 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:36:25,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1583 treesize of output 1349 [2021-11-20 23:36:26,958 INFO L354 Elim1Store]: treesize reduction 1190, result has 35.1 percent of original size [2021-11-20 23:36:26,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 1383 treesize of output 1461 [2021-11-20 23:36:27,782 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:36:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:27,922 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-20 23:36:27,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 23:36:28,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:28,499 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-20 23:36:28,499 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 46 treesize of output 44 [2021-11-20 23:36:28,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:36:28,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:28,735 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 203 treesize of output 119 [2021-11-20 23:36:28,859 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:36:29,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:36:29,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:29,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:29,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:36:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:29,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:29,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:29,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:29,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 116 [2021-11-20 23:36:29,755 INFO L354 Elim1Store]: treesize reduction 208, result has 36.4 percent of original size [2021-11-20 23:36:29,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 224 treesize of output 240 [2021-11-20 23:36:30,415 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-20 23:36:30,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 591 treesize of output 599 [2021-11-20 23:36:30,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:30,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-20 23:36:31,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:31,030 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 25 treesize of output 15 [2021-11-20 23:36:31,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:31,361 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-20 23:36:31,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 26 [2021-11-20 23:36:31,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:36:31,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:31,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-20 23:36:32,033 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:36:32,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:32,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-11-20 23:36:33,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:37,134 INFO L354 Elim1Store]: treesize reduction 953, result has 23.9 percent of original size [2021-11-20 23:36:37,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 2287 treesize of output 1821 [2021-11-20 23:36:37,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:38,972 INFO L354 Elim1Store]: treesize reduction 1254, result has 25.9 percent of original size [2021-11-20 23:36:38,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 12 new quantified variables, introduced 33 case distinctions, treesize of input 2717 treesize of output 2212 [2021-11-20 23:36:39,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:39,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:39,960 INFO L354 Elim1Store]: treesize reduction 492, result has 44.3 percent of original size [2021-11-20 23:36:39,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 4 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 63 case distinctions, treesize of input 1986 treesize of output 2274 [2021-11-20 23:37:06,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:06,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:06,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:06,172 INFO L354 Elim1Store]: treesize reduction 46, result has 52.6 percent of original size [2021-11-20 23:37:06,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1205 treesize of output 1145 [2021-11-20 23:37:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:09,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:09,728 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-20 23:37:09,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1184 treesize of output 1078 [2021-11-20 23:37:11,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:11,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:11,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:11,691 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:11,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1189 treesize of output 1131 [2021-11-20 23:37:15,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:15,574 INFO L354 Elim1Store]: treesize reduction 62, result has 1.6 percent of original size [2021-11-20 23:37:15,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 627 treesize of output 535 [2021-11-20 23:37:16,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 606 treesize of output 518 [2021-11-20 23:37:16,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:16,735 INFO L354 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2021-11-20 23:37:16,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 268 treesize of output 212 [2021-11-20 23:37:17,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,131 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-20 23:37:17,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 247 treesize of output 195 [2021-11-20 23:37:17,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:17,323 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-20 23:37:17,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 278 treesize of output 222 [2021-11-20 23:37:19,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:19,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:19,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:19,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:19,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:19,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:19,196 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-20 23:37:19,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 617 treesize of output 523 [2021-11-20 23:37:20,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:20,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:20,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:20,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:20,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:20,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:20,353 INFO L354 Elim1Store]: treesize reduction 90, result has 24.4 percent of original size [2021-11-20 23:37:20,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 638 treesize of output 568 [2021-11-20 23:37:24,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:24,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:24,118 INFO L354 Elim1Store]: treesize reduction 209, result has 6.3 percent of original size [2021-11-20 23:37:24,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 279 treesize of output 231 [2021-11-20 23:37:25,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:25,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:25,041 INFO L354 Elim1Store]: treesize reduction 144, result has 0.7 percent of original size [2021-11-20 23:37:25,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 258 treesize of output 200 [2021-11-20 23:37:25,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:25,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:25,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:25,801 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-20 23:37:25,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 289 treesize of output 227 [2021-11-20 23:37:26,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:26,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:26,953 INFO L354 Elim1Store]: treesize reduction 142, result has 2.1 percent of original size [2021-11-20 23:37:26,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 1195 treesize of output 1086 [2021-11-20 23:37:29,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:29,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:29,978 INFO L354 Elim1Store]: treesize reduction 193, result has 13.5 percent of original size [2021-11-20 23:37:29,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 1216 treesize of output 1129 [2021-11-20 23:37:34,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:34,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:34,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:34,468 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-20 23:37:34,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1200 treesize of output 1090 [2021-11-20 23:37:44,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:44,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:44,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:44,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:45,018 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:45,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1791 treesize of output 1597 [2021-11-20 23:37:51,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:51,256 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:51,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:51,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:51,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1784 treesize of output 1546 [2021-11-20 23:37:56,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:56,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:56,338 INFO L354 Elim1Store]: treesize reduction 96, result has 29.9 percent of original size [2021-11-20 23:37:56,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 1252 treesize of output 1176 [2021-11-20 23:38:04,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:04,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:05,248 INFO L354 Elim1Store]: treesize reduction 150, result has 37.2 percent of original size [2021-11-20 23:38:05,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 1267 treesize of output 1233 [2021-11-20 23:38:26,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:26,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:26,116 INFO L354 Elim1Store]: treesize reduction 144, result has 0.7 percent of original size [2021-11-20 23:38:26,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 1256 treesize of output 1138 [2021-11-20 23:38:35,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:35,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:35,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:35,387 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 154 treesize of output 126 [2021-11-20 23:38:35,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:35,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:35,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:35,833 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 238 treesize of output 204 [2021-11-20 23:38:36,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:36,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:36,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:36,584 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 112 treesize of output 90 [2021-11-20 23:38:40,858 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:40,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:40,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:40,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:40,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:40,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:40,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:40,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:40,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:40,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 198 [2021-11-20 23:38:41,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:41,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:41,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:41,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:41,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:41,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:41,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:41,484 INFO L354 Elim1Store]: treesize reduction 44, result has 57.3 percent of original size [2021-11-20 23:38:41,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 320 treesize of output 334 [2021-11-20 23:38:45,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:45,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:45,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:45,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:45,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:45,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:45,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:45,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 177 [2021-11-20 23:38:47,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,112 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:38:47,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 131 [2021-11-20 23:38:47,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:47,741 INFO L354 Elim1Store]: treesize reduction 44, result has 52.7 percent of original size [2021-11-20 23:38:47,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 159 treesize of output 179 [2021-11-20 23:38:49,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,278 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 26 treesize of output 10 [2021-11-20 23:38:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,484 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 26 treesize of output 10 [2021-11-20 23:38:49,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:49,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 13 [2021-11-20 23:38:51,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:51,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:51,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:51,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:51,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:51,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 159 treesize of output 131 [2021-11-20 23:38:54,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:54,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:54,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:54,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:54,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:54,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:54,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 128 [2021-11-20 23:38:55,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:55,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:55,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:55,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:55,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:55,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:38:55,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 128 [2021-11-20 23:38:58,752 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:03,485 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:09,605 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:11,064 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:14,492 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:14,690 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:15,130 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:15,555 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:17,374 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:17,488 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:19,188 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:19,305 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:19,814 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:39:22,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:39:22,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:22,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:22,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:22,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:22,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:22,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:22,764 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:39:22,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 955 treesize of output 857 [2021-11-20 23:39:27,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:27,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:27,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:27,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:27,243 INFO L354 Elim1Store]: treesize reduction 102, result has 26.6 percent of original size [2021-11-20 23:39:27,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 964 treesize of output 888 [2021-11-20 23:39:47,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:47,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:47,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:47,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:47,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:39:47,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 13 [2021-11-20 23:41:19,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:41:19,591 INFO L354 Elim1Store]: treesize reduction 348, result has 33.2 percent of original size [2021-11-20 23:41:19,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 34 case distinctions, treesize of input 4654 treesize of output 3668 [2021-11-20 23:42:05,807 INFO L354 Elim1Store]: treesize reduction 310, result has 32.2 percent of original size [2021-11-20 23:42:05,807 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 467 treesize of output 534 [2021-11-20 23:42:05,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:06,468 INFO L354 Elim1Store]: treesize reduction 234, result has 39.8 percent of original size [2021-11-20 23:42:06,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 757 treesize of output 760 [2021-11-20 23:42:06,895 INFO L354 Elim1Store]: treesize reduction 316, result has 40.3 percent of original size [2021-11-20 23:42:06,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 792 treesize of output 927 [2021-11-20 23:42:07,316 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:07,366 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:07,461 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:07,537 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:07,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:07,727 INFO L354 Elim1Store]: treesize reduction 15, result has 44.4 percent of original size [2021-11-20 23:42:07,727 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 48 treesize of output 46 [2021-11-20 23:42:07,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:07,959 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:42:07,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 60 [2021-11-20 23:42:08,256 INFO L354 Elim1Store]: treesize reduction 14, result has 65.9 percent of original size [2021-11-20 23:42:08,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 73 [2021-11-20 23:42:08,536 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:08,757 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:08,860 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:09,057 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-20 23:42:09,057 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 1 case distinctions, treesize of input 52 treesize of output 44 [2021-11-20 23:42:09,575 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:10,043 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:42:10,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:42:10,203 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:42:10,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 14 [2021-11-20 23:44:13,656 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:44:13,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 423 treesize of output 449 [2021-11-20 23:44:13,715 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:44:13,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 450 treesize of output 471 [2021-11-20 23:46:31,198 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:46:31,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 134 [2021-11-20 23:46:33,265 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:46:33,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 186 treesize of output 207 [2021-11-20 23:46:35,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:35,167 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:46:35,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 76 [2021-11-20 23:46:35,529 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:46:35,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 68 [2021-11-20 23:46:35,927 INFO L354 Elim1Store]: treesize reduction 16, result has 66.0 percent of original size [2021-11-20 23:46:35,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 81 [2021-11-20 23:46:39,425 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:46:39,427 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 27 treesize of output 31 [2021-11-20 23:46:39,624 WARN L234 Elim1Store]: Array PQE input equivalent to false