./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c098eb2ea0abe7b0f4b25f613d67df9ef36b2215e5396f258b75924d2167f9c8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:04:59,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:04:59,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:04:59,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:04:59,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:04:59,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:04:59,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:04:59,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:04:59,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:04:59,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:04:59,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:04:59,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:04:59,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:04:59,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:04:59,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:04:59,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:04:59,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:04:59,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:04:59,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:04:59,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:04:59,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:04:59,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:04:59,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:04:59,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:04:59,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:04:59,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:04:59,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:04:59,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:04:59,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:04:59,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:04:59,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:04:59,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:04:59,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:04:59,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:04:59,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:04:59,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:04:59,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:04:59,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:04:59,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:04:59,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:04:59,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:04:59,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:04:59,333 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:04:59,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:04:59,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:04:59,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:04:59,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:04:59,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:04:59,342 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:04:59,342 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:04:59,343 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:04:59,343 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:04:59,344 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:04:59,344 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:04:59,344 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:04:59,345 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:04:59,345 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:04:59,345 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:04:59,345 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:04:59,346 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:04:59,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:04:59,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:04:59,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:04:59,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:04:59,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:04:59,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:04:59,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:04:59,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:04:59,349 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:04:59,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:04:59,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:04:59,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:04:59,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:04:59,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:04:59,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:04:59,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:04:59,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:04:59,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:04:59,352 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:04:59,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:04:59,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:04:59,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:04:59,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:04:59,353 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_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c098eb2ea0abe7b0f4b25f613d67df9ef36b2215e5396f258b75924d2167f9c8 [2021-11-21 00:04:59,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:04:59,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:04:59,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:04:59,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:04:59,652 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:04:59,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i [2021-11-21 00:04:59,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/data/664d84117/c2431094ac86485e82838e40f3d744d8/FLAGb06d40bcb [2021-11-21 00:05:00,368 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:05:00,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i [2021-11-21 00:05:00,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/data/664d84117/c2431094ac86485e82838e40f3d744d8/FLAGb06d40bcb [2021-11-21 00:05:00,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/data/664d84117/c2431094ac86485e82838e40f3d744d8 [2021-11-21 00:05:00,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:05:00,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:05:00,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:05:00,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:05:00,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:05:00,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:05:00" (1/1) ... [2021-11-21 00:05:00,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227b4e94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:00, skipping insertion in model container [2021-11-21 00:05:00,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:05:00" (1/1) ... [2021-11-21 00:05:00,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:05:00,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:05:01,266 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_67079e3c-ce08-4a18-94d6-74ee85d9b65e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i[33022,33035] [2021-11-21 00:05:01,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:05:01,519 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:05:01,561 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_67079e3c-ce08-4a18-94d6-74ee85d9b65e/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i[33022,33035] [2021-11-21 00:05:01,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:05:01,777 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:05:01,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01 WrapperNode [2021-11-21 00:05:01,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:05:01,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:05:01,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:05:01,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:05:01,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:01,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:01,993 INFO L137 Inliner]: procedures = 177, calls = 623, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2467 [2021-11-21 00:05:01,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:05:01,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:05:01,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:05:01,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:05:02,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:02,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:02,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:02,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:02,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:02,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:02,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:02,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:05:02,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:05:02,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:05:02,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:05:02,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (1/1) ... [2021-11-21 00:05:02,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:05:02,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:02,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:05:02,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:05:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-21 00:05:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-21 00:05:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:05:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:05:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:05:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:05:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:05:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:05:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:05:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:05:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:05:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:05:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:05:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:05:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:05:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:05:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:05:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:05:02,762 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:05:02,763 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:05:04,649 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:05:05,500 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:05:05,500 INFO L301 CfgBuilder]: Removed 168 assume(true) statements. [2021-11-21 00:05:05,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:05:05 BoogieIcfgContainer [2021-11-21 00:05:05,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:05:05,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:05:05,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:05:05,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:05:05,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:05:00" (1/3) ... [2021-11-21 00:05:05,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7d3d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:05:05, skipping insertion in model container [2021-11-21 00:05:05,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:01" (2/3) ... [2021-11-21 00:05:05,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7d3d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:05:05, skipping insertion in model container [2021-11-21 00:05:05,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:05:05" (3/3) ... [2021-11-21 00:05:05,520 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-3.i [2021-11-21 00:05:05,525 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:05:05,526 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:05:05,576 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:05:05,583 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:05:05,584 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:05:05,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 258 states have (on average 1.8255813953488371) internal successors, (471), 263 states have internal predecessors, (471), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 00:05:05,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 00:05:05,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:05,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:05,619 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:05,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:05,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1192354420, now seen corresponding path program 1 times [2021-11-21 00:05:05,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:05,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095463049] [2021-11-21 00:05:05,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:05,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:05,799 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:05,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095463049] [2021-11-21 00:05:05,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095463049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:05,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:05,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:05,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728842460] [2021-11-21 00:05:05,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:05,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:05:05,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:05,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:05:05,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:05:05,838 INFO L87 Difference]: Start difference. First operand has 277 states, 258 states have (on average 1.8255813953488371) internal successors, (471), 263 states have internal predecessors, (471), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:07,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:07,090 INFO L93 Difference]: Finished difference Result 553 states and 1005 transitions. [2021-11-21 00:05:07,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:05:07,094 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-21 00:05:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:07,104 INFO L225 Difference]: With dead ends: 553 [2021-11-21 00:05:07,105 INFO L226 Difference]: Without dead ends: 249 [2021-11-21 00:05:07,110 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 [2021-11-21 00:05:07,113 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:07,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 298 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 00:05:07,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-21 00:05:07,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-21 00:05:07,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:05:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2021-11-21 00:05:07,173 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2021-11-21 00:05:07,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:07,173 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2021-11-21 00:05:07,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:07,174 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2021-11-21 00:05:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 00:05:07,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:07,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:07,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:05:07,178 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:07,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash 989100517, now seen corresponding path program 1 times [2021-11-21 00:05:07,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:07,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286023478] [2021-11-21 00:05:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:07,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:07,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:07,299 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:07,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286023478] [2021-11-21 00:05:07,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286023478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:07,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:07,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:05:07,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758200666] [2021-11-21 00:05:07,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:07,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:05:07,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:07,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:05:07,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:07,305 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:11,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:11,076 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2021-11-21 00:05:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:11,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 00:05:11,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:11,080 INFO L225 Difference]: With dead ends: 425 [2021-11-21 00:05:11,080 INFO L226 Difference]: Without dead ends: 276 [2021-11-21 00:05:11,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:11,082 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 27 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:11,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 770 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-21 00:05:11,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-21 00:05:11,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2021-11-21 00:05:11,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:05:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-11-21 00:05:11,106 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2021-11-21 00:05:11,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:11,106 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-11-21 00:05:11,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:11,107 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-11-21 00:05:11,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-21 00:05:11,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:11,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:11,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:05:11,114 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:11,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:11,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1975886730, now seen corresponding path program 1 times [2021-11-21 00:05:11,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:11,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818394275] [2021-11-21 00:05:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:11,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:11,166 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:05:11,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778174658] [2021-11-21 00:05:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:11,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:11,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:11,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:05:11,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:05:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:11,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:05:11,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:11,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:05:11,779 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:11,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818394275] [2021-11-21 00:05:11,780 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:05:11,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778174658] [2021-11-21 00:05:11,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778174658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:11,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:11,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:11,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326494500] [2021-11-21 00:05:11,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:11,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:11,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:11,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:11,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:11,783 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:14,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:14,014 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2021-11-21 00:05:14,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:14,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-21 00:05:14,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:14,018 INFO L225 Difference]: With dead ends: 614 [2021-11-21 00:05:14,018 INFO L226 Difference]: Without dead ends: 366 [2021-11-21 00:05:14,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:14,019 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 120 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:14,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 532 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-21 00:05:14,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-21 00:05:14,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2021-11-21 00:05:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-21 00:05:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2021-11-21 00:05:14,083 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2021-11-21 00:05:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:14,084 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2021-11-21 00:05:14,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:14,084 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2021-11-21 00:05:14,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 00:05:14,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:14,087 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] [2021-11-21 00:05:14,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:14,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:14,303 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:14,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:14,303 INFO L85 PathProgramCache]: Analyzing trace with hash 879389578, now seen corresponding path program 1 times [2021-11-21 00:05:14,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:14,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841128690] [2021-11-21 00:05:14,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:14,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:14,327 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:05:14,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430198491] [2021-11-21 00:05:14,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:14,328 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:14,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:14,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:05:14,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:05:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:14,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:05:14,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:14,768 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 [2021-11-21 00:05:14,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:05:14,820 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 60 treesize of output 44 [2021-11-21 00:05:14,831 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:05:14,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2021-11-21 00:05:14,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 00:05:14,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:05:14,965 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:14,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841128690] [2021-11-21 00:05:14,966 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:05:14,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430198491] [2021-11-21 00:05:14,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430198491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:14,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:14,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:05:14,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672749606] [2021-11-21 00:05:14,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:14,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:05:14,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:14,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:05:14,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:14,968 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:05:18,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:18,244 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2021-11-21 00:05:18,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:18,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-21 00:05:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:18,247 INFO L225 Difference]: With dead ends: 674 [2021-11-21 00:05:18,247 INFO L226 Difference]: Without dead ends: 362 [2021-11-21 00:05:18,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:18,249 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 12 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:18,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 770 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 00:05:18,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-21 00:05:18,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-21 00:05:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-21 00:05:18,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2021-11-21 00:05:18,269 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2021-11-21 00:05:18,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:18,270 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2021-11-21 00:05:18,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:05:18,270 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2021-11-21 00:05:18,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-21 00:05:18,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:18,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:18,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:18,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:18,483 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:18,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:18,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1466373685, now seen corresponding path program 1 times [2021-11-21 00:05:18,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:18,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047226874] [2021-11-21 00:05:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:18,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:18,507 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:05:18,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773474732] [2021-11-21 00:05:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:18,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:18,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:18,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:05:18,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:05:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:18,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:05:18,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 00:05:19,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:05:19,079 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:19,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047226874] [2021-11-21 00:05:19,080 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:05:19,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773474732] [2021-11-21 00:05:19,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773474732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:19,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:19,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:19,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839245540] [2021-11-21 00:05:19,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:19,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:19,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:19,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:19,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:19,082 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:05:21,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:05:21,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:21,591 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2021-11-21 00:05:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:21,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2021-11-21 00:05:21,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:21,595 INFO L225 Difference]: With dead ends: 820 [2021-11-21 00:05:21,595 INFO L226 Difference]: Without dead ends: 484 [2021-11-21 00:05:21,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:21,597 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:21,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 530 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 00:05:21,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-21 00:05:21,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2021-11-21 00:05:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-21 00:05:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2021-11-21 00:05:21,621 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2021-11-21 00:05:21,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:21,622 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2021-11-21 00:05:21,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:05:21,622 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2021-11-21 00:05:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-21 00:05:21,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:21,625 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:21,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:21,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:21,851 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:21,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:21,851 INFO L85 PathProgramCache]: Analyzing trace with hash 2009173670, now seen corresponding path program 1 times [2021-11-21 00:05:21,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:21,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070940391] [2021-11-21 00:05:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:21,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:21,877 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:05:21,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150337562] [2021-11-21 00:05:21,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:21,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:21,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:21,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:05:21,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:05:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:22,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:05:22,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-21 00:05:22,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:05:22,578 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:22,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070940391] [2021-11-21 00:05:22,578 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:05:22,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150337562] [2021-11-21 00:05:22,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150337562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:22,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:22,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:05:22,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086230485] [2021-11-21 00:05:22,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:22,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:05:22,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:22,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:05:22,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:22,580 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 00:05:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:23,957 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2021-11-21 00:05:23,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:23,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2021-11-21 00:05:23,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:23,961 INFO L225 Difference]: With dead ends: 719 [2021-11-21 00:05:23,961 INFO L226 Difference]: Without dead ends: 351 [2021-11-21 00:05:23,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:23,963 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 438 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:23,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 334 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-21 00:05:23,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-21 00:05:23,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-21 00:05:23,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:05:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2021-11-21 00:05:23,983 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2021-11-21 00:05:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:23,984 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2021-11-21 00:05:23,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 00:05:23,984 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2021-11-21 00:05:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 00:05:23,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:23,986 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:24,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:24,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:24,214 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:24,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:24,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1698726905, now seen corresponding path program 1 times [2021-11-21 00:05:24,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:24,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771931078] [2021-11-21 00:05:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:24,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:24,237 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:05:24,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102618238] [2021-11-21 00:05:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:24,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:24,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:24,247 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:05:24,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:05:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:26,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:05:26,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 00:05:27,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:05:27,149 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:27,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771931078] [2021-11-21 00:05:27,149 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:05:27,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102618238] [2021-11-21 00:05:27,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102618238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:27,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:27,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:05:27,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993729200] [2021-11-21 00:05:27,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:27,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:05:27,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:27,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:05:27,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:27,154 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 00:05:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:29,023 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2021-11-21 00:05:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2021-11-21 00:05:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:29,027 INFO L225 Difference]: With dead ends: 684 [2021-11-21 00:05:29,027 INFO L226 Difference]: Without dead ends: 353 [2021-11-21 00:05:29,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:29,029 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:29,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 00:05:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-21 00:05:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-21 00:05:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2021-11-21 00:05:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2021-11-21 00:05:29,049 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2021-11-21 00:05:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:29,050 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2021-11-21 00:05:29,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 00:05:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2021-11-21 00:05:29,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-21 00:05:29,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:29,052 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:29,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-21 00:05:29,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-21 00:05:29,263 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:05:29,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash -636857137, now seen corresponding path program 1 times [2021-11-21 00:05:29,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:29,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784391301] [2021-11-21 00:05:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:29,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:29,284 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:05:29,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [761580610] [2021-11-21 00:05:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:29,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:05:29,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:29,286 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:05:29,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67079e3c-ce08-4a18-94d6-74ee85d9b65e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 00:12:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:12:58,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-21 00:12:58,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:12:58,512 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-21 00:12:58,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:12:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:12:58,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:12:58,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784391301] [2021-11-21 00:12:58,944 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:12:58,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761580610] [2021-11-21 00:12:58,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761580610] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:12:58,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1360504279] [2021-11-21 00:12:58,976 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2021-11-21 00:12:58,976 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:12:58,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:12:58,988 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:12:58,989 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:12:59,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:12:59,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,345 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:12:59,345 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 [2021-11-21 00:12:59,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 00:12:59,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:12:59,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,435 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 [2021-11-21 00:12:59,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,629 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 00:12:59,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-21 00:12:59,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,734 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 00:12:59,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 00:12:59,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,803 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:12:59,803 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 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 00:12:59,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,848 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 [2021-11-21 00:12:59,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:12:59,901 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 [2021-11-21 00:13:01,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 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 [2021-11-21 00:13:01,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-21 00:13:01,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:13:01,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:01,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:13:02,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:13:02,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 108 treesize of output 98 [2021-11-21 00:13:02,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 75 treesize of output 77 [2021-11-21 00:13:02,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:13:02,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 00:13:02,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,458 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:13:02,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 00:13:02,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 00:13:02,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,668 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 00:13:02,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 00:13:02,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:02,733 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 00:13:02,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 145 treesize of output 156 [2021-11-21 00:13:03,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:13:03,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:13:03,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:13:03,441 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 00:13:03,441 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 [2021-11-21 00:13:03,467 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:13:03,467 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 [2021-11-21 00:13:03,488 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:13:03,488 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 [2021-11-21 00:13:03,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:13:03,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:13:03,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:13:03,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,717 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 46 treesize of output 16 [2021-11-21 00:13:03,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 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 [2021-11-21 00:13:03,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:03,810 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 68 treesize of output 26 [2021-11-21 00:13:04,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 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 [2021-11-21 00:13:04,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,215 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 68 treesize of output 26 [2021-11-21 00:13:04,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:04,340 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 46 treesize of output 16 [2021-11-21 00:13:14,068 WARN L227 SmtUtils]: Spent 9.51s 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) [2021-11-21 00:13:14,069 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 00:13:14,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 00:13:14,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:27,681 WARN L227 SmtUtils]: Spent 13.57s 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) [2021-11-21 00:13:27,682 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 00:13:27,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 00:13:41,955 WARN L227 SmtUtils]: Spent 14.07s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:13:41,957 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 00:13:41,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2916 treesize of output 2686 [2021-11-21 00:13:42,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:43,636 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 00:13:43,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25954 treesize of output 25968 [2021-11-21 00:13:43,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:43,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:43,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:44,977 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 00:13:44,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25953 treesize of output 25968 [2021-11-21 00:13:47,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:47,658 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 00:13:47,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 00:13:48,106 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:13:48,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,093 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:13:49,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61