./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7 --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 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:01:48,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:01:48,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:01:48,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:01:48,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:01:48,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:01:48,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:01:48,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:01:48,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:01:48,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:01:48,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:01:48,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:01:48,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:01:48,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:01:48,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:01:48,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:01:48,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:01:48,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:01:48,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:01:48,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:01:48,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:01:48,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:01:48,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:01:48,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:01:48,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:01:48,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:01:48,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:01:48,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:01:48,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:01:48,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:01:48,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:01:48,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:01:48,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:01:48,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:01:48,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:01:48,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:01:48,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:01:48,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:01:48,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:01:48,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:01:48,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:01:48,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:01:48,365 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:01:48,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:01:48,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:01:48,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:01:48,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:01:48,371 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:01:48,371 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:01:48,372 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:01:48,372 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:01:48,372 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:01:48,373 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:01:48,374 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:01:48,374 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:01:48,374 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:01:48,374 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:01:48,374 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:01:48,375 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:01:48,375 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:01:48,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:01:48,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:01:48,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:01:48,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:01:48,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:01:48,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:01:48,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:01:48,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:01:48,379 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:01:48,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:01:48,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:01:48,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:01:48,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:01:48,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:01:48,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:01:48,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:01:48,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:01:48,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:01:48,391 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:01:48,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:01:48,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:01:48,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:01:48,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:01:48,392 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_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2021-11-25 20:01:48,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:01:48,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:01:48,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:01:48,669 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:01:48,669 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:01:48,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2021-11-25 20:01:48,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/data/8b2c5d85b/aaaa1c55476a487a9dfad261e0e65741/FLAGdbb59aa37 [2021-11-25 20:01:49,365 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:01:49,366 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2021-11-25 20:01:49,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/data/8b2c5d85b/aaaa1c55476a487a9dfad261e0e65741/FLAGdbb59aa37 [2021-11-25 20:01:49,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/data/8b2c5d85b/aaaa1c55476a487a9dfad261e0e65741 [2021-11-25 20:01:49,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:01:49,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:01:49,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:01:49,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:01:49,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:01:49,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:01:49" (1/1) ... [2021-11-25 20:01:49,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cfa01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:49, skipping insertion in model container [2021-11-25 20:01:49,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:01:49" (1/1) ... [2021-11-25 20:01:49,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:01:49,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:01:50,177 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_0e06ae2c-7edf-4acb-ab09-e97706ea3001/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2021-11-25 20:01:50,368 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_0e06ae2c-7edf-4acb-ab09-e97706ea3001/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2021-11-25 20:01:50,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:01:50,410 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:01:50,453 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_0e06ae2c-7edf-4acb-ab09-e97706ea3001/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2021-11-25 20:01:50,547 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_0e06ae2c-7edf-4acb-ab09-e97706ea3001/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2021-11-25 20:01:50,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:01:50,605 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:01:50,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50 WrapperNode [2021-11-25 20:01:50,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:01:50,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:01:50,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:01:50,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:01:50,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,775 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-25 20:01:50,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:01:50,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:01:50,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:01:50,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:01:50,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:01:50,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:01:50,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:01:50,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:01:50,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (1/1) ... [2021-11-25 20:01:50,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:01:50,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:01:50,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:01:50,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:01:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:01:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:01:51,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:01:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:01:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:01:51,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:01:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:01:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:01:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:01:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:01:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 20:01:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:01:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:01:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:01:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:01:51,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:01:51,306 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:01:51,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:01:52,487 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:01:52,956 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:01:52,957 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 20:01:52,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:01:52 BoogieIcfgContainer [2021-11-25 20:01:52,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:01:52,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:01:52,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:01:52,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:01:52,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:01:49" (1/3) ... [2021-11-25 20:01:52,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c950103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:01:52, skipping insertion in model container [2021-11-25 20:01:52,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:01:50" (2/3) ... [2021-11-25 20:01:52,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c950103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:01:52, skipping insertion in model container [2021-11-25 20:01:52,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:01:52" (3/3) ... [2021-11-25 20:01:52,979 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-2.i [2021-11-25 20:01:52,985 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:01:52,986 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 20:01:53,055 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:01:53,073 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 [2021-11-25 20:01:53,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:01:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:01:53,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 20:01:53,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:01:53,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:01:53,115 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:01:53,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:01:53,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-25 20:01:53,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:01:53,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462843470] [2021-11-25 20:01:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:53,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:01:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:01:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:01:53,364 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:01:53,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462843470] [2021-11-25 20:01:53,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462843470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:01:53,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:01:53,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:01:53,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316140171] [2021-11-25 20:01:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:01:53,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 20:01:53,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:01:53,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 20:01:53,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 20:01:53,416 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:01:54,040 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-25 20:01:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 20:01:54,049 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 20:01:54,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:01:54,060 INFO L225 Difference]: With dead ends: 273 [2021-11-25 20:01:54,060 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 20:01:54,064 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 [2021-11-25 20:01:54,069 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:01:54,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:01:54,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 20:01:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 20:01:54,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:01:54,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 20:01:54,122 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 20:01:54,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:01:54,123 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 20:01:54,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 20:01:54,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 20:01:54,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:01:54,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:01:54,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:01:54,126 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:01:54,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:01:54,127 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-25 20:01:54,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:01:54,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573093564] [2021-11-25 20:01:54,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:54,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:01:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:01:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:01:54,210 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:01:54,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573093564] [2021-11-25 20:01:54,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573093564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:01:54,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:01:54,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:01:54,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800319516] [2021-11-25 20:01:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:01:54,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:01:54,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:01:54,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:01:54,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:01:54,218 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:55,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:01:55,877 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 20:01:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:01:55,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 20:01:55,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:01:55,889 INFO L225 Difference]: With dead ends: 258 [2021-11-25 20:01:55,889 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 20:01:55,890 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 [2021-11-25 20:01:55,892 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:01:55,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:01:55,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 20:01:55,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 20:01:55,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:01:55,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 20:01:55,912 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 20:01:55,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:01:55,912 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 20:01:55,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 20:01:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 20:01:55,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:01:55,915 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:01:55,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:01:55,916 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:01:55,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:01:55,917 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-25 20:01:55,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:01:55,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546840304] [2021-11-25 20:01:55,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:55,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:01:56,108 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:01:56,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550780348] [2021-11-25 20:01:56,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:56,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:01:56,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:01:56,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:01:56,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:01:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:01:56,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:01:56,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:01:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:01:57,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:01:57,053 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:01:57,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546840304] [2021-11-25 20:01:57,057 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:01:57,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550780348] [2021-11-25 20:01:57,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550780348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:01:57,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:01:57,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:01:57,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100753598] [2021-11-25 20:01:57,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:01:57,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:01:57,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:01:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:01:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:01:57,063 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:57,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:01:57,924 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 20:01:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:01:57,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 20:01:57,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:01:57,937 INFO L225 Difference]: With dead ends: 304 [2021-11-25 20:01:57,937 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 20:01:57,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:01:57,940 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:01:57,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:01:57,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 20:01:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 20:01:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:01:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 20:01:57,960 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 20:01:57,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:01:57,960 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 20:01:57,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:01:57,961 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 20:01:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 20:01:57,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:01:57,963 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:01:57,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:01:58,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:01:58,178 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:01:58,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:01:58,178 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-25 20:01:58,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:01:58,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002884302] [2021-11-25 20:01:58,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:58,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:01:58,278 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:01:58,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [605103282] [2021-11-25 20:01:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:01:58,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:01:58,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:01:58,286 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:01:58,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:01:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:01:58,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:01:58,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:01:58,891 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 [2021-11-25 20:01:58,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:01:58,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 20:01:58,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:01:58,939 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:01:58,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002884302] [2021-11-25 20:01:58,941 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:01:58,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605103282] [2021-11-25 20:01:58,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605103282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:01:58,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:01:58,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:01:58,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731064543] [2021-11-25 20:01:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:01:58,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:01:58,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:01:58,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:01:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:01:58,945 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:02:00,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:02:00,626 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 20:02:00,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:02:00,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 20:02:00,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:02:00,637 INFO L225 Difference]: With dead ends: 231 [2021-11-25 20:02:00,638 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 20:02:00,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:02:00,644 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:02:00,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 20:02:00,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 20:02:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 20:02:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:02:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 20:02:00,661 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 20:02:00,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:02:00,661 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 20:02:00,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:02:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 20:02:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 20:02:00,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:02:00,664 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:02:00,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:02:00,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:02:00,886 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:02:00,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:02:00,886 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-25 20:02:00,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:02:00,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226428853] [2021-11-25 20:02:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:00,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:02:00,957 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:02:00,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899923929] [2021-11-25 20:02:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:00,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:02:00,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:02:00,959 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:02:00,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:02:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:02:01,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:02:01,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:02:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:02:01,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:02:01,607 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:02:01,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226428853] [2021-11-25 20:02:01,607 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:02:01,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899923929] [2021-11-25 20:02:01,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899923929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:02:01,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:02:01,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:02:01,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566488828] [2021-11-25 20:02:01,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:02:01,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:02:01,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:02:01,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:02:01,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:02:01,610 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:02:02,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:02:02,478 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 20:02:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:02:02,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-25 20:02:02,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:02:02,482 INFO L225 Difference]: With dead ends: 395 [2021-11-25 20:02:02,482 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 20:02:02,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:02:02,484 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:02:02,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:02:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 20:02:02,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 20:02:02,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:02:02,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 20:02:02,506 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 20:02:02,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:02:02,507 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 20:02:02,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:02:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 20:02:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 20:02:02,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:02:02,511 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:02:02,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:02:02,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:02:02,733 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:02:02,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:02:02,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-25 20:02:02,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:02:02,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535610609] [2021-11-25 20:02:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:02,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:02:02,802 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:02:02,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451011042] [2021-11-25 20:02:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:02,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:02:02,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:02:02,803 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:02:02,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:02:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:02:05,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:02:05,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:02:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:02:06,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:02:06,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:02:06,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535610609] [2021-11-25 20:02:06,013 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:02:06,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451011042] [2021-11-25 20:02:06,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451011042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:02:06,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:02:06,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:02:06,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359284943] [2021-11-25 20:02:06,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:02:06,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:02:06,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:02:06,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:02:06,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:02:06,016 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:02:06,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:02:06,816 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 20:02:06,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:02:06,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-25 20:02:06,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:02:06,824 INFO L225 Difference]: With dead ends: 411 [2021-11-25 20:02:06,825 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 20:02:06,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:02:06,826 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:02:06,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:02:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 20:02:06,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 20:02:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 20:02:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 20:02:06,841 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 20:02:06,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:02:06,842 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 20:02:06,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:02:06,842 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 20:02:06,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 20:02:06,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:02:06,845 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:02:06,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:02:07,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 20:02:07,074 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:02:07,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:02:07,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-25 20:02:07,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:02:07,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997177007] [2021-11-25 20:02:07,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:07,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:02:07,135 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:02:07,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853998980] [2021-11-25 20:02:07,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:02:07,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:02:07,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:02:07,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:02:07,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e06ae2c-7edf-4acb-ab09-e97706ea3001/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:02:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:02:08,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:02:08,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:02:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:02:08,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:02:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:02:08,688 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:02:08,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997177007] [2021-11-25 20:02:08,688 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:02:08,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853998980] [2021-11-25 20:02:08,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853998980] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:02:08,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1364189684] [2021-11-25 20:02:08,717 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 20:02:08,717 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:02:08,723 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:02:08,731 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:02:08,732 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:02:08,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:08,923 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:02:08,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-25 20:02:08,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:08,960 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:02:08,961 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 [2021-11-25 20:02:08,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:08,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:02:08,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:02:09,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:02:09,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,076 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:02:09,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-25 20:02:09,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 20:02:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,149 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 20:02:09,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-25 20:02:09,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 20:02:09,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,229 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:02:09,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 20:02:09,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 20:02:09,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-25 20:02:09,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:02:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:02:09,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:02:09,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 20:02:09,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 20:02:09,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:02:09,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:02:09,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 20:02:09,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2021-11-25 20:02:09,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:09,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,054 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 20:02:10,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2021-11-25 20:02:10,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 20:02:10,194 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 13 treesize of output 9 [2021-11-25 20:02:10,198 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 [2021-11-25 20:02:10,204 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 [2021-11-25 20:02:10,255 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:02:10,255 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 57 treesize of output 60 [2021-11-25 20:02:10,286 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:02:10,287 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 51 treesize of output 54 [2021-11-25 20:02:10,318 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:02:10,318 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 47 treesize of output 50 [2021-11-25 20:02:10,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 20:02:10,376 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 [2021-11-25 20:02:10,383 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 [2021-11-25 20:02:10,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 20:02:10,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 20:02:10,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 20:02:10,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 20:02:10,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 20:02:10,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:10,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 20:02:18,249 WARN L227 SmtUtils]: Spent 7.40s 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) [2021-11-25 20:02:18,250 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:02:18,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 20:02:18,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:27,955 WARN L227 SmtUtils]: Spent 9.59s 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) [2021-11-25 20:02:27,955 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:02:27,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 20:02:28,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:28,509 INFO L244 Elim1Store]: Index analysis took 361 ms [2021-11-25 20:02:38,322 WARN L227 SmtUtils]: Spent 9.53s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 20:02:38,323 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 20:02:38,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 1373 [2021-11-25 20:02:38,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:38,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:38,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:38,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:38,965 INFO L244 Elim1Store]: Index analysis took 195 ms [2021-11-25 20:02:39,819 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 20:02:39,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 42 treesize of output 73 [2021-11-25 20:02:40,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:40,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:40,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:40,161 INFO L244 Elim1Store]: Index analysis took 135 ms [2021-11-25 20:02:40,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 20:02:40,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:40,798 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 20:02:40,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 20:02:40,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:41,159 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:02:41,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 20:02:41,328 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:41,389 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:41,514 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:41,573 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:41,670 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:41,730 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:41,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:41,837 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:41,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:41,857 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:41,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:41,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:41,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:41,928 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-11-25 20:02:42,039 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:02:42,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3084 treesize of output 2866 [2021-11-25 20:02:42,257 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:42,469 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:42,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:42,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:42,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,665 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 3096 treesize of output 2648 [2021-11-25 20:02:42,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:42,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,928 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:42,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:42,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:43,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:43,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:43,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:43,037 INFO L244 Elim1Store]: Index analysis took 144 ms [2021-11-25 20:02:43,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3105 treesize of output 2651 [2021-11-25 20:02:43,489 INFO L244 Elim1Store]: Index analysis took 236 ms [2021-11-25 20:02:46,125 INFO L354 Elim1Store]: treesize reduction 468, result has 74.7 percent of original size [2021-11-25 20:02:46,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3105 treesize of output 4035 [2021-11-25 20:02:48,026 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:48,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:48,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,134 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:48,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,237 INFO L244 Elim1Store]: Index analysis took 138 ms [2021-11-25 20:02:48,238 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 3096 treesize of output 2648 [2021-11-25 20:02:48,440 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:48,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:48,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:48,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:48,618 INFO L244 Elim1Store]: Index analysis took 118 ms [2021-11-25 20:02:48,965 INFO L354 Elim1Store]: treesize reduction 6, result has 91.3 percent of original size [2021-11-25 20:02:48,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3096 treesize of output 2710 [2021-11-25 20:02:49,961 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:50,036 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:50,141 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:50,210 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:50,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:50,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:50,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:50,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:50,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3075 treesize of output 2645 [2021-11-25 20:02:50,575 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:50,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:02:50,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:50,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:50,836 INFO L244 Elim1Store]: Index analysis took 121 ms [2021-11-25 20:02:51,339 INFO L354 Elim1Store]: treesize reduction 793, result has 31.2 percent of original size [2021-11-25 20:02:51,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3084 treesize of output 3008 [2021-11-25 20:02:51,602 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:52,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:52,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-25 20:02:52,752 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:52,793 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:52,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:52,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-25 20:02:53,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:53,362 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 20:02:53,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-25 20:02:53,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:53,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:53,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-25 20:02:53,546 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:55,748 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:56,184 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:56,268 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:56,289 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:56,364 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:56,442 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:02:59,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:02:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver