./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH --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 64bit --witnessprinter.graph.data.programhash 588c504bc2fd23c9ce280a0a1b43a680048f163183a3674ad6d00cde5eb05799 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:53:08,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:53:08,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:53:08,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:53:08,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:53:08,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:53:08,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:53:08,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:53:08,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:53:08,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:53:08,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:53:08,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:53:08,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:53:08,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:53:08,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:53:08,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:53:08,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:53:08,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:53:08,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:53:08,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:53:08,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:53:08,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:53:08,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:53:08,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:53:08,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:53:08,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:53:08,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:53:08,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:53:08,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:53:08,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:53:08,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:53:08,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:53:08,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:53:08,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:53:08,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:53:08,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:53:08,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:53:08,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:53:08,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:53:08,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:53:08,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:53:08,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:53:08,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:53:08,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:53:08,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:53:08,456 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:53:08,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:53:08,457 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:53:08,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:53:08,457 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:53:08,458 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:53:08,458 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:53:08,459 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:53:08,460 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:53:08,460 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:53:08,460 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:53:08,461 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:53:08,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:53:08,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:53:08,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:53:08,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:53:08,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:53:08,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:53:08,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:53:08,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:53:08,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:53:08,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:53:08,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:53:08,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:53:08,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:08,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:53:08,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:53:08,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:53:08,469 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:53:08,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:53:08,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:53:08,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:53:08,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:53:08,471 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 588c504bc2fd23c9ce280a0a1b43a680048f163183a3674ad6d00cde5eb05799 [2021-11-03 03:53:08,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:53:08,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:53:08,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:53:08,859 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:53:08,860 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:53:08,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i [2021-11-03 03:53:08,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data/d4ad1f276/b6661c0ee92b41eaa0525ff0138feece/FLAG61ad43613 [2021-11-03 03:53:10,013 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:53:10,014 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i [2021-11-03 03:53:10,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data/d4ad1f276/b6661c0ee92b41eaa0525ff0138feece/FLAG61ad43613 [2021-11-03 03:53:10,467 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data/d4ad1f276/b6661c0ee92b41eaa0525ff0138feece [2021-11-03 03:53:10,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:53:10,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:53:10,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:10,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:53:10,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:53:10,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:10" (1/1) ... [2021-11-03 03:53:10,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2141e083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:10, skipping insertion in model container [2021-11-03 03:53:10,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:10" (1/1) ... [2021-11-03 03:53:10,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:53:10,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:53:10,995 WARN L228 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4496,4509] [2021-11-03 03:53:11,009 WARN L228 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4556,4569] [2021-11-03 03:53:11,040 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:53:11,052 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:53:11,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:11,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:11,982 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:11,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:11,984 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:12,403 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:53:12,405 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:53:12,407 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:53:12,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:53:12,410 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:53:12,411 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:53:12,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:53:12,413 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:53:12,414 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:53:12,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:53:12,565 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:53:12,586 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:53:12,592 INFO L168 Benchmark]: Toolchain (without parser) took 2116.46 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 69.6 MB in the end (delta: -10.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-11-03 03:53:12,593 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:53:12,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2114.05 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 69.6 MB in the end (delta: -10.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-11-03 03:53:12,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2114.05 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 58.8 MB in the beginning and 69.6 MB in the end (delta: -10.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH --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 64bit --witnessprinter.graph.data.programhash 588c504bc2fd23c9ce280a0a1b43a680048f163183a3674ad6d00cde5eb05799 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:53:15,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:53:15,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:53:15,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:53:15,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:53:15,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:53:15,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:53:15,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:53:15,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:53:15,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:53:15,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:53:15,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:53:15,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:53:15,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:53:15,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:53:15,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:53:15,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:53:15,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:53:15,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:53:15,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:53:15,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:53:15,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:53:15,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:53:15,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:53:15,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:53:15,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:53:15,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:53:15,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:53:15,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:53:15,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:53:15,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:53:15,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:53:15,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:53:15,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:53:15,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:53:15,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:53:15,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:53:15,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:53:15,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:53:15,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:53:15,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:53:15,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:53:15,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:53:15,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:53:15,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:53:15,531 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:53:15,531 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:53:15,532 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:53:15,532 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:53:15,532 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:53:15,533 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:53:15,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:53:15,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:53:15,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:53:15,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:53:15,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:53:15,537 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:53:15,537 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:53:15,537 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:53:15,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:53:15,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:53:15,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:53:15,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:53:15,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:53:15,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:53:15,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:15,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:53:15,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:53:15,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:53:15,540 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:53:15,542 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:53:15,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:53:15,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:53:15,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:53:15,543 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 588c504bc2fd23c9ce280a0a1b43a680048f163183a3674ad6d00cde5eb05799 [2021-11-03 03:53:16,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:53:16,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:53:16,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:53:16,072 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:53:16,073 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:53:16,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i [2021-11-03 03:53:16,147 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data/ca9d1a03c/c59cc19345144ce0a82ff72ec2dae202/FLAG03454b366 [2021-11-03 03:53:17,142 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:53:17,143 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i [2021-11-03 03:53:17,203 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data/ca9d1a03c/c59cc19345144ce0a82ff72ec2dae202/FLAG03454b366 [2021-11-03 03:53:17,604 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/data/ca9d1a03c/c59cc19345144ce0a82ff72ec2dae202 [2021-11-03 03:53:17,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:53:17,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:53:17,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:17,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:53:17,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:53:17,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:17" (1/1) ... [2021-11-03 03:53:17,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21818efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:17, skipping insertion in model container [2021-11-03 03:53:17,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:17" (1/1) ... [2021-11-03 03:53:17,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:53:17,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:53:18,193 WARN L228 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4496,4509] [2021-11-03 03:53:18,200 WARN L228 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4556,4569] [2021-11-03 03:53:18,224 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:53:18,230 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:53:19,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,623 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:19,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:53:20,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:53:20,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:53:20,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:53:20,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:53:20,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:53:20,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:53:20,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:53:20,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:53:20,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:53:20,321 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:53:20,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:53:20,379 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:53:20,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:53:20,427 WARN L228 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4496,4509] [2021-11-03 03:53:20,427 WARN L228 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4556,4569] [2021-11-03 03:53:20,429 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:53:20,429 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:53:20,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,553 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:53:20,554 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:53:20,555 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:53:20,556 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:53:20,557 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:53:20,558 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:53:20,558 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:53:20,559 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:53:20,559 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:53:20,560 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:53:20,588 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:53:20,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:53:20,615 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:53:20,631 WARN L228 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4496,4509] [2021-11-03 03:53:20,632 WARN L228 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_184eee73-dece-44b5-a58c-2b6e9dac2b9f/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4556,4569] [2021-11-03 03:53:20,634 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:53:20,634 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:53:20,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:20,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:53:20,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:53:20,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:53:20,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:53:20,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:53:20,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:53:20,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:53:20,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:53:20,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:53:20,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:53:20,780 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:53:20,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:53:21,167 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:53:21,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21 WrapperNode [2021-11-03 03:53:21,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:21,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:53:21,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:53:21,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:53:21,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:53:21,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:53:21,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:53:21,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:53:21,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:53:21,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:53:21,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:53:21,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:53:21,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (1/1) ... [2021-11-03 03:53:21,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:21,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:53:21,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:53:21,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:53:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:53:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:53:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:53:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:53:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:53:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:53:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:53:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:53:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:53:22,507 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:53:22,508 INFO L299 CfgBuilder]: Removed 45 assume(true) statements. [2021-11-03 03:53:22,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:53:22 BoogieIcfgContainer [2021-11-03 03:53:22,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:53:22,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:53:22,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:53:22,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:53:22,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:53:17" (1/3) ... [2021-11-03 03:53:22,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abda6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:53:22, skipping insertion in model container [2021-11-03 03:53:22,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:21" (2/3) ... [2021-11-03 03:53:22,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abda6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:53:22, skipping insertion in model container [2021-11-03 03:53:22,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:53:22" (3/3) ... [2021-11-03 03:53:22,524 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_remove_harness.i [2021-11-03 03:53:22,533 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:53:22,533 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-03 03:53:22,594 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:53:22,606 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 [2021-11-03 03:53:22,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-03 03:53:22,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 65 states have (on average 1.4923076923076923) internal successors, (97), 72 states have internal predecessors, (97), 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) [2021-11-03 03:53:22,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 03:53:22,627 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:22,628 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:53:22,629 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 03:53:22,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:22,635 INFO L85 PathProgramCache]: Analyzing trace with hash 505703481, now seen corresponding path program 1 times [2021-11-03 03:53:22,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:53:22,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143745399] [2021-11-03 03:53:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:22,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:53:22,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:53:22,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:53:22,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:53:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:22,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:53:22,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:23,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:23,199 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:23,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143745399] [2021-11-03 03:53:23,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143745399] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:23,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:23,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:53:23,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882807743] [2021-11-03 03:53:23,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:53:23,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:53:23,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:53:23,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:53:23,237 INFO L87 Difference]: Start difference. First operand has 73 states, 65 states have (on average 1.4923076923076923) internal successors, (97), 72 states have internal predecessors, (97), 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) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:23,276 INFO L93 Difference]: Finished difference Result 138 states and 183 transitions. [2021-11-03 03:53:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:53:23,278 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 03:53:23,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:23,290 INFO L225 Difference]: With dead ends: 138 [2021-11-03 03:53:23,290 INFO L226 Difference]: Without dead ends: 68 [2021-11-03 03:53:23,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:53:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-03 03:53:23,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-03 03:53:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 67 states have internal predecessors, (79), 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) [2021-11-03 03:53:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-11-03 03:53:23,351 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 24 [2021-11-03 03:53:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:23,352 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-11-03 03:53:23,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-11-03 03:53:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 03:53:23,354 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:23,354 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:53:23,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:23,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:53:23,578 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 03:53:23,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:23,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1496918578, now seen corresponding path program 1 times [2021-11-03 03:53:23,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:53:23,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256909162] [2021-11-03 03:53:23,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:23,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:53:23,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:53:23,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:53:23,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:53:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:23,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:53:23,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:24,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:24,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:24,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256909162] [2021-11-03 03:53:24,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256909162] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:24,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:24,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:53:24,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614881973] [2021-11-03 03:53:24,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:53:24,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:53:24,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:53:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:53:24,166 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-03 03:53:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:24,205 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2021-11-03 03:53:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:53:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 27 [2021-11-03 03:53:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:24,208 INFO L225 Difference]: With dead ends: 119 [2021-11-03 03:53:24,208 INFO L226 Difference]: Without dead ends: 70 [2021-11-03 03:53:24,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:53:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-03 03:53:24,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-03 03:53:24,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 69 states have internal predecessors, (81), 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) [2021-11-03 03:53:24,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-03 03:53:24,218 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 27 [2021-11-03 03:53:24,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:24,219 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-03 03:53:24,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-03 03:53:24,219 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-03 03:53:24,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 03:53:24,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:24,221 INFO L513 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] [2021-11-03 03:53:24,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:24,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:53:24,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 03:53:24,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1915881010, now seen corresponding path program 1 times [2021-11-03 03:53:24,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:53:24,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818578092] [2021-11-03 03:53:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:24,443 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:53:24,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:53:24,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:53:24,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:53:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:24,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:53:24,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:24,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:24,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:25,236 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:25,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818578092] [2021-11-03 03:53:25,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818578092] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:25,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [749199199] [2021-11-03 03:53:25,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:25,238 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:53:25,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:53:25,255 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:53:25,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-03 03:53:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:25,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:53:25,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 03:53:25,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:25,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 03:53:25,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [749199199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:25,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 03:53:25,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 12 [2021-11-03 03:53:25,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147625811] [2021-11-03 03:53:25,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:53:25,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:53:25,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:53:25,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-03 03:53:25,791 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-11-03 03:53:25,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:25,934 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2021-11-03 03:53:25,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:53:25,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 29 [2021-11-03 03:53:25,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:25,941 INFO L225 Difference]: With dead ends: 112 [2021-11-03 03:53:25,941 INFO L226 Difference]: Without dead ends: 110 [2021-11-03 03:53:25,942 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-03 03:53:25,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-03 03:53:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 72. [2021-11-03 03:53:25,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 71 states have internal predecessors, (83), 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) [2021-11-03 03:53:25,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2021-11-03 03:53:25,954 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 29 [2021-11-03 03:53:25,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:25,955 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2021-11-03 03:53:25,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-11-03 03:53:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2021-11-03 03:53:25,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 03:53:25,958 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:25,959 INFO L513 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] [2021-11-03 03:53:25,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:26,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:26,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:53:26,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 03:53:26,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:26,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1914272296, now seen corresponding path program 1 times [2021-11-03 03:53:26,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:53:26,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730366628] [2021-11-03 03:53:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:26,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:53:26,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:53:26,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:53:26,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:53:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:26,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:53:26,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:26,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:27,168 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:27,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730366628] [2021-11-03 03:53:27,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730366628] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:27,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1212376642] [2021-11-03 03:53:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:27,170 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:53:27,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:53:27,176 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:53:27,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-03 03:53:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:27,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:53:27,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:27,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:27,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:27,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1212376642] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:27,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663928898] [2021-11-03 03:53:27,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:27,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:53:27,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:53:27,910 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:53:27,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 03:53:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:28,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 03:53:28,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:28,468 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 12 treesize of output 8 [2021-11-03 03:53:28,596 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-03 03:53:28,599 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 21 treesize of output 20 [2021-11-03 03:53:28,863 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 [2021-11-03 03:53:28,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:28,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:49,279 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 85 treesize of output 81 [2021-11-03 03:53:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:49,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663928898] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:49,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:53:49,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 9, 7] total 19 [2021-11-03 03:53:49,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54048480] [2021-11-03 03:53:49,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-03 03:53:49,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:53:49,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-03 03:53:49,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=278, Unknown=10, NotChecked=0, Total=342 [2021-11-03 03:53:49,601 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 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) [2021-11-03 03:53:53,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:53,600 INFO L93 Difference]: Finished difference Result 171 states and 198 transitions. [2021-11-03 03:53:53,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 03:53:53,602 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 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 29 [2021-11-03 03:53:53,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:53,605 INFO L225 Difference]: With dead ends: 171 [2021-11-03 03:53:53,605 INFO L226 Difference]: Without dead ends: 120 [2021-11-03 03:53:53,606 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=177, Invalid=624, Unknown=11, NotChecked=0, Total=812 [2021-11-03 03:53:53,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-03 03:53:53,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 78. [2021-11-03 03:53:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.267605633802817) internal successors, (90), 77 states have internal predecessors, (90), 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) [2021-11-03 03:53:53,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2021-11-03 03:53:53,631 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 29 [2021-11-03 03:53:53,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:53,632 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2021-11-03 03:53:53,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 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) [2021-11-03 03:53:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2021-11-03 03:53:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 03:53:53,638 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:53,638 INFO L513 BasicCegarLoop]: trace histogram [6, 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] [2021-11-03 03:53:53,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:53,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:54,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:54,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:53:54,248 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 03:53:54,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1829913967, now seen corresponding path program 1 times [2021-11-03 03:53:54,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:53:54,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395801671] [2021-11-03 03:53:54,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:54,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:53:54,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:53:54,252 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:53:54,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:53:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:54,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:53:54,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:53:54,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:53:56,259 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:56,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395801671] [2021-11-03 03:53:56,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395801671] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:56,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [133571590] [2021-11-03 03:53:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:56,260 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:53:56,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:53:56,262 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:53:56,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-03 03:53:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:56,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:53:56,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:53:57,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:57,217 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:53:57,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [133571590] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:57,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038055107] [2021-11-03 03:53:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:57,218 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:53:57,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:53:57,220 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:53:57,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 03:53:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:57,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:53:57,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:53:57,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:53:57,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038055107] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:57,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:53:57,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 16 [2021-11-03 03:53:57,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035454587] [2021-11-03 03:53:57,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 03:53:57,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:53:57,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 03:53:57,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-03 03:53:57,906 INFO L87 Difference]: Start difference. First operand 78 states and 90 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 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) [2021-11-03 03:54:00,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:00,226 INFO L93 Difference]: Finished difference Result 139 states and 166 transitions. [2021-11-03 03:54:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 03:54:00,228 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 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 36 [2021-11-03 03:54:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:00,229 INFO L225 Difference]: With dead ends: 139 [2021-11-03 03:54:00,229 INFO L226 Difference]: Without dead ends: 86 [2021-11-03 03:54:00,231 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2021-11-03 03:54:00,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-03 03:54:00,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-03 03:54:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.240506329113924) internal successors, (98), 85 states have internal predecessors, (98), 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) [2021-11-03 03:54:00,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2021-11-03 03:54:00,244 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 36 [2021-11-03 03:54:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:00,244 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2021-11-03 03:54:00,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 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) [2021-11-03 03:54:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2021-11-03 03:54:00,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 03:54:00,246 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:00,246 INFO L513 BasicCegarLoop]: trace histogram [14, 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] [2021-11-03 03:54:00,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:00,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:00,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:00,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:54:00,856 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 03:54:00,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash 95270255, now seen corresponding path program 2 times [2021-11-03 03:54:00,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:00,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061136623] [2021-11-03 03:54:00,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:54:00,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:00,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:00,859 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:00,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 03:54:01,541 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 03:54:01,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:54:01,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 03:54:01,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:54:02,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:54:05,732 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:05,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1061136623] [2021-11-03 03:54:05,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1061136623] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:54:05,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1613764634] [2021-11-03 03:54:05,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:54:05,732 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:05,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:54:05,733 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:54:05,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-03 03:54:06,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 03:54:06,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:54:06,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 03:54:07,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:54:07,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:54:07,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1613764634] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:54:07,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130826971] [2021-11-03 03:54:07,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:54:07,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:54:07,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:54:07,502 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:54:07,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 03:54:08,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 03:54:08,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:54:08,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 03:54:08,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:54:08,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:54:08,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130826971] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:54:08,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:54:08,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17, 17, 17, 17] total 32 [2021-11-03 03:54:08,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368848499] [2021-11-03 03:54:08,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-03 03:54:08,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:08,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-03 03:54:08,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2021-11-03 03:54:08,812 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand has 32 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 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) [2021-11-03 03:54:09,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:09,965 INFO L93 Difference]: Finished difference Result 141 states and 162 transitions. [2021-11-03 03:54:09,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 03:54:09,966 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 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 44 [2021-11-03 03:54:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:09,968 INFO L225 Difference]: With dead ends: 141 [2021-11-03 03:54:09,968 INFO L226 Difference]: Without dead ends: 88 [2021-11-03 03:54:09,969 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2021-11-03 03:54:09,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-03 03:54:09,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-03 03:54:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 87 states have internal predecessors, (100), 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) [2021-11-03 03:54:09,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2021-11-03 03:54:09,981 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 44 [2021-11-03 03:54:09,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:09,982 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2021-11-03 03:54:09,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 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) [2021-11-03 03:54:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2021-11-03 03:54:09,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 03:54:09,984 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:09,984 INFO L513 BasicCegarLoop]: trace histogram [16, 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] [2021-11-03 03:54:10,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:10,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:10,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:10,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:10,598 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 03:54:10,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:10,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1319956113, now seen corresponding path program 3 times [2021-11-03 03:54:10,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:10,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643821229] [2021-11-03 03:54:10,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:54:10,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:10,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:10,601 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:10,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 03:54:11,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-03 03:54:11,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:54:11,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-03 03:54:11,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:12,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-03 03:54:12,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-11-03 03:54:12,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-03 03:54:12,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 03:54:12,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:12,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2021-11-03 03:54:13,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 80 [2021-11-03 03:54:13,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:13,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 94 [2021-11-03 03:54:14,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 108 [2021-11-03 03:54:14,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:14,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 122 [2021-11-03 03:54:15,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:15,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 128 [2021-11-03 03:54:16,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 141 [2021-11-03 03:54:16,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:16,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,098 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-11-03 03:54:17,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 155 [2021-11-03 03:54:17,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:17,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,056 INFO L244 Elim1Store]: Index analysis took 151 ms [2021-11-03 03:54:18,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 169 [2021-11-03 03:54:18,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:18,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:54:19,025 INFO L244 Elim1Store]: Index analysis took 149 ms [2021-11-03 03:54:19,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 180 [2021-11-03 03:54:21,868 INFO L354 Elim1Store]: treesize reduction 1456, result has 8.0 percent of original size [2021-11-03 03:54:21,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 140 treesize of output 178 [2021-11-03 03:54:29,757 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-03 03:54:29,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 152 treesize of output 52 [2021-11-03 03:54:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:30,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:09,191 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-03 03:58:09,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1982416 treesize of output 1982406 [2021-11-03 03:58:16,463 WARN L207 SmtUtils]: Spent 7.27 s on a formula simplification that was a NOOP. DAG size: 283 [2021-11-03 03:59:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 128 refuted. 10 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:59:41,878 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:59:41,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643821229] [2021-11-03 03:59:41,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643821229] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:59:41,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1104611050] [2021-11-03 03:59:41,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:59:41,879 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:59:41,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:59:41,881 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:59:41,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-03 03:59:45,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:59:45,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7965279] [2021-11-03 03:59:45,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:59:45,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:59:45,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:59:45,407 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:59:45,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-03 03:59:45,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184eee73-dece-44b5-a58c-2b6e9dac2b9f/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 1