./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V --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 d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:32:08,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:32:08,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:32:09,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:32:09,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:32:09,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:32:09,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:32:09,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:32:09,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:32:09,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:32:09,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:32:09,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:32:09,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:32:09,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:32:09,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:32:09,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:32:09,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:32:09,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:32:09,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:32:09,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:32:09,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:32:09,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:32:09,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:32:09,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:32:09,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:32:09,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:32:09,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:32:09,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:32:09,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:32:09,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:32:09,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:32:09,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:32:09,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:32:09,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:32:09,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:32:09,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:32:09,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:32:09,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:32:09,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:32:09,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:32:09,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:32:09,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:32:09,155 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:32:09,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:32:09,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:32:09,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:32:09,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:32:09,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:32:09,164 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:32:09,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:32:09,165 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:32:09,165 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:32:09,166 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:32:09,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:32:09,167 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:32:09,167 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:32:09,167 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:32:09,167 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:32:09,168 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:32:09,168 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:32:09,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:32:09,169 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:32:09,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:32:09,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:32:09,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:32:09,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:32:09,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:32:09,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:32:09,172 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:32:09,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:32:09,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:32:09,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:32:09,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:32:09,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:32:09,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:32:09,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:32:09,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:32:09,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:32:09,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:32:09,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:32:09,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:32:09,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:32:09,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:32:09,176 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_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2021-11-23 03:32:09,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:32:09,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:32:09,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:32:09,471 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:32:09,471 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:32:09,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2021-11-23 03:32:09,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/data/df7634ff1/2644867020924b039741815704d2e76a/FLAG093135221 [2021-11-23 03:32:10,156 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:32:10,157 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2021-11-23 03:32:10,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/data/df7634ff1/2644867020924b039741815704d2e76a/FLAG093135221 [2021-11-23 03:32:10,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/data/df7634ff1/2644867020924b039741815704d2e76a [2021-11-23 03:32:10,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:32:10,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:32:10,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:32:10,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:32:10,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:32:10,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:10" (1/1) ... [2021-11-23 03:32:10,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1fc578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:10, skipping insertion in model container [2021-11-23 03:32:10,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:10" (1/1) ... [2021-11-23 03:32:10,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:32:10,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:32:10,872 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_51b5b406-3546-464f-a03f-9fe290fb5e91/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i[33021,33034] [2021-11-23 03:32:11,001 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_51b5b406-3546-464f-a03f-9fe290fb5e91/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i[44590,44603] [2021-11-23 03:32:11,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:32:11,034 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:32:11,073 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_51b5b406-3546-464f-a03f-9fe290fb5e91/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i[33021,33034] [2021-11-23 03:32:11,154 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_51b5b406-3546-464f-a03f-9fe290fb5e91/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i[44590,44603] [2021-11-23 03:32:11,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:32:11,229 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:32:11,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11 WrapperNode [2021-11-23 03:32:11,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:32:11,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:32:11,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:32:11,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:32:11,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,390 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-23 03:32:11,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:32:11,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:32:11,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:32:11,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:32:11,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:32:11,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:32:11,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:32:11,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:32:11,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (1/1) ... [2021-11-23 03:32:11,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:32:11,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:32:11,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:32:11,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:32:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:32:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:32:11,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:32:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:32:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:32:11,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:32:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:32:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:32:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:32:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:32:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:32:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:32:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:32:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:32:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:32:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:32:11,982 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:32:11,984 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:32:13,157 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:32:13,557 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:32:13,557 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 03:32:13,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:13 BoogieIcfgContainer [2021-11-23 03:32:13,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:32:13,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:32:13,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:32:13,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:32:13,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:32:10" (1/3) ... [2021-11-23 03:32:13,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17448e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:13, skipping insertion in model container [2021-11-23 03:32:13,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:11" (2/3) ... [2021-11-23 03:32:13,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17448e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:13, skipping insertion in model container [2021-11-23 03:32:13,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:13" (3/3) ... [2021-11-23 03:32:13,572 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-2.i [2021-11-23 03:32:13,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:32:13,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:32:13,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:32:13,654 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 [2021-11-23 03:32:13,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 03:32:13,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:32:13,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:32:13,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:13,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:13,683 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:13,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:13,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-23 03:32:13,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:13,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329375683] [2021-11-23 03:32:13,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:13,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:32:13,869 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:13,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329375683] [2021-11-23 03:32:13,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329375683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:13,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:13,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:32:13,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164166336] [2021-11-23 03:32:13,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:13,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:32:13,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:13,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:32:13,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:32:13,907 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-23 03:32:14,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:14,436 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-23 03:32:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:32:14,442 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-23 03:32:14,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:14,453 INFO L225 Difference]: With dead ends: 273 [2021-11-23 03:32:14,454 INFO L226 Difference]: Without dead ends: 122 [2021-11-23 03:32:14,458 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 [2021-11-23 03:32:14,462 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:14,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 03:32:14,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-23 03:32:14,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-23 03:32:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:32:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-23 03:32:14,512 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-23 03:32:14,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:14,512 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-23 03:32:14,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-23 03:32:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-23 03:32:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:32:14,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:14,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:14,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:32:14,515 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:14,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:14,516 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-23 03:32:14,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:14,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602217749] [2021-11-23 03:32:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:14,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:14,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:32:14,582 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:14,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602217749] [2021-11-23 03:32:14,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602217749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:14,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:14,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:32:14,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130573779] [2021-11-23 03:32:14,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:14,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:32:14,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:14,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:32:14,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:32:14,587 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:32:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:16,236 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-23 03:32:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:32:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 03:32:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:16,247 INFO L225 Difference]: With dead ends: 258 [2021-11-23 03:32:16,247 INFO L226 Difference]: Without dead ends: 189 [2021-11-23 03:32:16,248 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 [2021-11-23 03:32:16,250 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:16,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-23 03:32:16,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-23 03:32:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-23 03:32:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:32:16,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-23 03:32:16,268 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-23 03:32:16,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:16,268 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-23 03:32:16,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:32:16,269 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-23 03:32:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 03:32:16,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:16,271 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:16,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:32:16,271 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:16,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:16,272 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-23 03:32:16,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:16,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785732642] [2021-11-23 03:32:16,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:16,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:16,309 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:32:16,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1833012209] [2021-11-23 03:32:16,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:16,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:16,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:32:16,311 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:32:16,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:32:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:16,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:32:16,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:32:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:32:16,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:32:16,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:16,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785732642] [2021-11-23 03:32:16,823 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:32:16,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833012209] [2021-11-23 03:32:16,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833012209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:16,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:16,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:32:16,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704884336] [2021-11-23 03:32:16,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:16,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:32:16,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:16,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:32:16,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:32:16,826 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:32:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:17,557 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-23 03:32:17,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:32:17,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-23 03:32:17,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:17,566 INFO L225 Difference]: With dead ends: 304 [2021-11-23 03:32:17,566 INFO L226 Difference]: Without dead ends: 183 [2021-11-23 03:32:17,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:32:17,569 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:17,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 03:32:17,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-23 03:32:17,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-23 03:32:17,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:32:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-23 03:32:17,586 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-23 03:32:17,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:17,586 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-23 03:32:17,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:32:17,587 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-23 03:32:17,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 03:32:17,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:17,589 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 03:32:17,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:32:17,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:17,810 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:17,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:17,811 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-23 03:32:17,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:17,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988523629] [2021-11-23 03:32:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:17,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:17,829 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:32:17,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477401384] [2021-11-23 03:32:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:17,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:17,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:32:17,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:32:17,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:32:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:18,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:32:18,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:32:18,182 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 [2021-11-23 03:32:18,220 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 [2021-11-23 03:32:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 03:32:18,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:32:18,238 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:18,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988523629] [2021-11-23 03:32:18,242 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:32:18,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477401384] [2021-11-23 03:32:18,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477401384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:18,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:18,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:32:18,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415632523] [2021-11-23 03:32:18,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:18,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:32:18,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:18,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:32:18,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:32:18,247 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:32:20,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:32:20,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:20,569 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-23 03:32:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:32:20,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-23 03:32:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:20,590 INFO L225 Difference]: With dead ends: 231 [2021-11-23 03:32:20,591 INFO L226 Difference]: Without dead ends: 212 [2021-11-23 03:32:20,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:32:20,592 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 58 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:20,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 354 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 03:32:20,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-23 03:32:20,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-23 03:32:20,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:32:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-23 03:32:20,621 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-23 03:32:20,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:20,625 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-23 03:32:20,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:32:20,626 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-23 03:32:20,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 03:32:20,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:20,629 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:20,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:32:20,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:20,854 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:20,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:20,855 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-23 03:32:20,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:20,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166689016] [2021-11-23 03:32:20,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:20,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:20,894 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:32:20,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1129713237] [2021-11-23 03:32:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:20,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:20,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:32:20,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:32:20,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:32:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:21,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:32:21,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:32:21,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:32:21,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:32:21,351 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:21,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166689016] [2021-11-23 03:32:21,352 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:32:21,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129713237] [2021-11-23 03:32:21,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129713237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:21,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:21,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:32:21,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779260061] [2021-11-23 03:32:21,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:21,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:32:21,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:21,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:32:21,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:32:21,354 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:32:22,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:22,170 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-23 03:32:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:32:22,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-23 03:32:22,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:22,173 INFO L225 Difference]: With dead ends: 395 [2021-11-23 03:32:22,173 INFO L226 Difference]: Without dead ends: 242 [2021-11-23 03:32:22,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:32:22,175 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:22,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 03:32:22,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-23 03:32:22,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-23 03:32:22,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:32:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-23 03:32:22,199 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-23 03:32:22,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:22,200 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-23 03:32:22,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:32:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-23 03:32:22,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 03:32:22,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:22,203 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:22,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:32:22,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:22,418 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:22,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:22,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-23 03:32:22,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:22,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357605630] [2021-11-23 03:32:22,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:22,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:22,436 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:32:22,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122409547] [2021-11-23 03:32:22,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:22,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:22,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:32:22,438 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:32:22,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:32:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:23,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:32:23,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:32:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:32:23,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:32:23,261 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:23,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357605630] [2021-11-23 03:32:23,261 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:32:23,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122409547] [2021-11-23 03:32:23,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122409547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:32:23,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:32:23,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:32:23,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62924045] [2021-11-23 03:32:23,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:32:23,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:32:23,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:32:23,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:32:23,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:32:23,264 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:32:25,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:32:25,139 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-23 03:32:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:32:25,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 03:32:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:32:25,151 INFO L225 Difference]: With dead ends: 411 [2021-11-23 03:32:25,151 INFO L226 Difference]: Without dead ends: 216 [2021-11-23 03:32:25,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:32:25,153 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:32:25,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-23 03:32:25,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-23 03:32:25,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-23 03:32:25,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-23 03:32:25,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-23 03:32:25,174 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-23 03:32:25,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:32:25,174 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-23 03:32:25,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:32:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-23 03:32:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 03:32:25,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:32:25,178 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:32:25,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:32:25,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:25,394 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:32:25,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:32:25,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-23 03:32:25,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:32:25,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211277359] [2021-11-23 03:32:25,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:25,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:32:25,421 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:32:25,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549312017] [2021-11-23 03:32:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:32:25,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:32:25,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:32:25,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:32:25,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b5b406-3546-464f-a03f-9fe290fb5e91/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:32:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:32:32,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 03:32:32,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:32:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:32:32,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:32:32,651 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:32:32,651 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:32:32,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211277359] [2021-11-23 03:32:32,652 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:32:32,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549312017] [2021-11-23 03:32:32,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549312017] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:32:32,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [535924580] [2021-11-23 03:32:32,673 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-23 03:32:32,674 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:32:32,678 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:32:32,683 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:32:32,684 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:32:32,803 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 [2021-11-23 03:32:32,812 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 [2021-11-23 03:32:32,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 03:32:32,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,842 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:32:32,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-23 03:32:32,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,873 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:32:32,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-23 03:32:32,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2021-11-23 03:32:32,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,967 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 03:32:32,967 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 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-23 03:32:32,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:32,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,008 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 03:32:33,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-23 03:32:33,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,082 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:32:33,083 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 [2021-11-23 03:32:33,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2021-11-23 03:32:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2021-11-23 03:32:33,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2021-11-23 03:32:33,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-23 03:32:33,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-23 03:32:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2021-11-23 03:32:33,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2021-11-23 03:32:33,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-23 03:32:33,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 03:32:33,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 03:32:33,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 03:32:33,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-23 03:32:33,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,819 INFO L354 Elim1Store]: treesize reduction 170, result has 24.8 percent of original size [2021-11-23 03:32:33,820 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 10 case distinctions, treesize of input 127 treesize of output 163 [2021-11-23 03:32:33,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:33,876 INFO L354 Elim1Store]: treesize reduction 104, result has 16.8 percent of original size [2021-11-23 03:32:33,877 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 4 case distinctions, treesize of input 145 treesize of output 156 [2021-11-23 03:32:33,989 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 [2021-11-23 03:32:33,994 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 [2021-11-23 03:32:34,000 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 [2021-11-23 03:32:34,050 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 03:32:34,051 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 98 treesize of output 97 [2021-11-23 03:32:34,075 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:32:34,075 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 94 treesize of output 93 [2021-11-23 03:32:34,102 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:32:34,102 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 90 treesize of output 89 [2021-11-23 03:32:34,123 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 [2021-11-23 03:32:34,131 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 [2021-11-23 03:32:34,136 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 [2021-11-23 03:32:34,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 03:32:34,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 03:32:34,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 46 treesize of output 16 [2021-11-23 03:32:34,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 03:32:34,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 03:32:34,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:34,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 46 treesize of output 16 [2021-11-23 03:32:42,086 WARN L227 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:32:42,087 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 03:32:42,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2863 treesize of output 2340 [2021-11-23 03:32:42,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:32:51,605 WARN L227 SmtUtils]: Spent 9.47s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:32:51,606 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 03:32:51,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2964 treesize of output 2682 [2021-11-23 03:33:02,406 WARN L227 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:33:02,408 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-23 03:33:02,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2868 treesize of output 2698 [2021-11-23 03:33:03,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:03,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:04,290 INFO L354 Elim1Store]: treesize reduction 156, result has 23.2 percent of original size [2021-11-23 03:33:04,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 25966 treesize of output 25997 [2021-11-23 03:33:04,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:04,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:05,067 INFO L354 Elim1Store]: treesize reduction 102, result has 20.3 percent of original size [2021-11-23 03:33:05,068 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 9 case distinctions, treesize of input 25976 treesize of output 25990 [2021-11-23 03:33:05,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:05,925 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-23 03:33:05,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 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 [2021-11-23 03:33:06,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:06,554 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:33:06,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-23 03:33:06,793 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:06,832 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:06,962 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:06,999 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,109 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,147 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,213 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,255 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,360 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,401 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,595 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,635 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,699 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,739 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,861 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,908 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:07,989 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,031 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,120 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,160 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,350 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,405 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,471 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,521 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,694 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,734 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,800 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,845 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,938 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:08,989 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,064 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,112 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,210 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,256 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,461 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,499 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,605 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,646 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,764 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,805 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,872 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:09,938 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:10,034 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:10,081 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:10,620 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:10,691 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:10,761 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:10,816 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:10,945 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:10,983 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,068 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,126 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,211 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,268 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,472 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,506 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,557 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,604 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,701 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,730 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,835 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,881 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,952 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:11,993 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,129 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,178 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,282 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:12,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:12,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:12,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:12,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:12,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:12,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:12,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:12,386 INFO L244 Elim1Store]: Index analysis took 104 ms [2021-11-23 03:33:12,387 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 1241 treesize of output 791 [2021-11-23 03:33:12,438 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,569 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,636 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,700 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,739 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,829 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,893 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:12,976 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,048 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,153 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,204 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,412 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,472 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,529 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,569 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,653 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,689 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,768 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,823 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,872 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:13,907 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,329 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,364 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,479 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,515 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,633 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,673 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,729 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,773 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,867 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:14,911 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,103 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,134 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,180 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,211 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,319 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,351 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,412 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,444 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,530 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,561 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,722 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,755 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,827 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,860 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:15,994 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,025 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,073 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,108 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,207 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,241 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,299 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,334 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,405 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,439 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,592 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,625 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,708 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,741 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,834 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,864 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,927 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:16,962 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:17,072 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:17,119 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:18,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:18,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 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 [2021-11-23 03:33:18,333 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:18,352 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:18,397 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:18,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:18,450 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 [2021-11-23 03:33:18,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:18,911 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-23 03:33:18,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-23 03:33:19,012 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:19,062 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:19,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:19,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-11-23 03:33:21,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:21,370 INFO L244 Elim1Store]: Index analysis took 177 ms [2021-11-23 03:33:21,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:23,842 INFO L354 Elim1Store]: treesize reduction 9884, result has 39.3 percent of original size [2021-11-23 03:33:23,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 57661 treesize of output 57014 [2021-11-23 03:33:40,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:40,738 INFO L244 Elim1Store]: Index analysis took 272 ms [2021-11-23 03:33:41,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:41,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:41,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:44,238 INFO L354 Elim1Store]: treesize reduction 8978, result has 45.0 percent of original size [2021-11-23 03:33:44,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 6843 treesize of output 12272 [2021-11-23 03:33:44,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:44,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:44,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:44,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:44,846 INFO L244 Elim1Store]: Index analysis took 151 ms [2021-11-23 03:33:45,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,015 INFO L354 Elim1Store]: treesize reduction 6630, result has 45.1 percent of original size [2021-11-23 03:33:47,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 12078 treesize of output 15360 [2021-11-23 03:33:47,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:47,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:47,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,493 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:47,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,651 INFO L244 Elim1Store]: Index analysis took 206 ms [2021-11-23 03:33:47,872 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 03:33:47,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 5290 treesize of output 3722 [2021-11-23 03:33:47,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,969 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:47,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:47,989 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:48,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,117 INFO L244 Elim1Store]: Index analysis took 159 ms [2021-11-23 03:33:48,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,381 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-23 03:33:48,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 9566 treesize of output 7506 [2021-11-23 03:33:48,547 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:48,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,586 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:48,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:48,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:48,755 INFO L244 Elim1Store]: Index analysis took 208 ms [2021-11-23 03:33:48,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7950 treesize of output 6198 [2021-11-23 03:33:49,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:49,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:49,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:49,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,327 INFO L244 Elim1Store]: Index analysis took 227 ms [2021-11-23 03:33:49,539 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 03:33:49,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 6834 treesize of output 5082 [2021-11-23 03:33:49,614 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:33:49,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:49,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:49,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,752 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:33:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:33:49,889 INFO L244 Elim1Store]: Index analysis took 194 ms [2021-11-23 03:33:50,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5290 treesize of output 3722 [2021-11-23 03:34:00,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:34:00,118 INFO L190 IndexEqualityManager]: detected not equals via solver