./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_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_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/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_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/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_7576de77-9f5f-4178-bada-a671fdc37b08/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 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:00:47,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:00:47,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:00:47,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:00:47,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:00:47,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:00:47,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:00:47,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:00:47,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:00:47,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:00:47,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:00:47,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:00:47,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:00:47,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:00:47,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:00:47,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:00:47,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:00:47,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:00:47,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:00:47,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:00:47,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:00:47,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:00:47,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:00:47,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:00:47,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:00:47,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:00:47,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:00:47,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:00:47,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:00:47,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:00:47,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:00:47,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:00:47,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:00:47,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:00:47,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:00:47,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:00:47,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:00:47,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:00:47,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:00:47,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:00:47,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:00:47,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:00:47,555 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:00:47,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:00:47,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:00:47,559 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:00:47,559 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:00:47,559 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:00:47,559 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:00:47,560 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:00:47,567 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:00:47,567 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:00:47,569 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:00:47,569 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:00:47,569 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:00:47,570 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:00:47,570 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:00:47,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:00:47,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:00:47,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:00:47,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:00:47,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:00:47,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:00:47,572 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:00:47,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:00:47,573 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:00:47,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:00:47,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:00:47,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:00:47,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:00:47,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:00:47,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:00:47,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:00:47,577 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:00:47,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:00:47,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:00:47,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:00:47,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:00:47,578 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_7576de77-9f5f-4178-bada-a671fdc37b08/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2021-11-03 05:00:47,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:00:48,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:00:48,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:00:48,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:00:48,025 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:00:48,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-03 05:00:48,114 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data/056c3686d/bad312d99fdd4426b758469eda82b0ad/FLAG786f276b3 [2021-11-03 05:00:49,314 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:00:49,315 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-03 05:00:49,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data/056c3686d/bad312d99fdd4426b758469eda82b0ad/FLAG786f276b3 [2021-11-03 05:00:49,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data/056c3686d/bad312d99fdd4426b758469eda82b0ad [2021-11-03 05:00:49,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:00:49,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:00:49,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:00:49,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:00:49,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:00:49,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:49" (1/1) ... [2021-11-03 05:00:49,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8e615f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:49, skipping insertion in model container [2021-11-03 05:00:49,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:49" (1/1) ... [2021-11-03 05:00:49,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:00:49,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:00:50,141 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_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-03 05:00:50,150 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_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-03 05:00:50,181 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:00:50,189 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:00:51,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,520 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,524 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:51,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:52,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:00:52,125 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:00:52,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:00:52,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:00:52,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:00:52,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:00:52,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:00:52,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:00:52,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:00:52,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:00:52,384 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:00:52,457 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.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:00:52,463 INFO L168 Benchmark]: Toolchain (without parser) took 2861.98 ms. Allocated memory is still 111.1 MB. Free memory was 67.5 MB in the beginning and 80.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:00:52,464 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 77.6 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:00:52,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2859.29 ms. Allocated memory is still 111.1 MB. Free memory was 67.3 MB in the beginning and 80.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:00:52,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 77.6 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2859.29 ms. Allocated memory is still 111.1 MB. Free memory was 67.3 MB in the beginning and 80.2 MB in the end (delta: -13.0 MB). Peak memory consumption was 25.8 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_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/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_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/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_7576de77-9f5f-4178-bada-a671fdc37b08/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 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:00:55,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:00:55,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:00:55,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:00:55,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:00:55,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:00:55,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:00:55,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:00:55,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:00:55,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:00:55,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:00:55,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:00:55,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:00:55,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:00:55,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:00:55,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:00:55,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:00:55,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:00:55,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:00:55,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:00:55,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:00:55,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:00:55,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:00:55,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:00:55,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:00:55,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:00:55,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:00:55,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:00:55,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:00:55,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:00:55,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:00:55,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:00:55,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:00:55,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:00:55,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:00:55,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:00:55,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:00:55,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:00:55,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:00:55,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:00:55,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:00:55,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:00:55,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:00:55,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:00:55,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:00:55,514 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:00:55,514 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:00:55,515 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:00:55,515 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:00:55,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:00:55,515 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:00:55,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:00:55,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:00:55,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:00:55,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:00:55,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:00:55,519 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:00:55,519 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:00:55,519 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:00:55,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:00:55,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:00:55,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:00:55,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:00:55,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:00:55,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:00:55,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:00:55,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:00:55,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:00:55,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:00:55,522 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:00:55,523 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:00:55,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:00:55,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:00:55,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:00:55,524 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_7576de77-9f5f-4178-bada-a671fdc37b08/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2021-11-03 05:00:55,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:00:55,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:00:55,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:00:55,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:00:55,917 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:00:55,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-03 05:00:56,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data/b45c7d3b3/5cb7a7cafab648719a5fa049ad68da02/FLAG797660728 [2021-11-03 05:00:57,040 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:00:57,042 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-03 05:00:57,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data/b45c7d3b3/5cb7a7cafab648719a5fa049ad68da02/FLAG797660728 [2021-11-03 05:00:57,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/data/b45c7d3b3/5cb7a7cafab648719a5fa049ad68da02 [2021-11-03 05:00:57,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:00:57,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:00:57,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:00:57,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:00:57,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:00:57,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:57" (1/1) ... [2021-11-03 05:00:57,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23513882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:00:57, skipping insertion in model container [2021-11-03 05:00:57,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:00:57" (1/1) ... [2021-11-03 05:00:57,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:00:57,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:00:57,953 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_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-03 05:00:57,966 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_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-03 05:00:58,002 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:00:58,013 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:00:59,322 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,369 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:00:59,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:00:59,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:00:59,922 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:00:59,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:00:59,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:00:59,926 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:00:59,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:00:59,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:00:59,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:00:59,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:01:00,171 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:01:00,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,688 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:00,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:00,824 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:01:00,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:01:00,984 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_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-03 05:01:00,985 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_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-03 05:01:00,987 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:01:00,988 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:01:01,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,055 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:01:01,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:01:01,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:01:01,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:01:01,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:01:01,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:01:01,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:01:01,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:01:01,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:01:01,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:01:01,169 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:01:01,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,310 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:01,400 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:01:01,426 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_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-03 05:01:01,433 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_7576de77-9f5f-4178-bada-a671fdc37b08/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-03 05:01:01,436 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:01:01,437 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:01:01,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,490 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:01:01,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:01:01,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:01:01,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:01:01,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:01:01,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:01:01,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:01:01,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:01:01,583 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:01:01,583 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:01:01,611 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:01:01,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,820 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,837 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:01,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:02,293 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:01:02,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02 WrapperNode [2021-11-03 05:01:02,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:01:02,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:01:02,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:01:02,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:01:02,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:01:02,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:01:02,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:01:02,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:01:02,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:01:02,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:01:02,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:01:02,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:01:02,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (1/1) ... [2021-11-03 05:01:02,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:01:02,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:01:02,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:01:02,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:01:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 05:01:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:01:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:01:02,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:01:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:01:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 05:01:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:01:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 05:01:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:01:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:01:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:01:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:01:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:01:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:01:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:01:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:01:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:01:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:01:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:01:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:01:21,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:01:21,799 INFO L299 CfgBuilder]: Removed 167 assume(true) statements. [2021-11-03 05:01:21,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:01:21 BoogieIcfgContainer [2021-11-03 05:01:21,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:01:21,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:01:21,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:01:21,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:01:21,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:00:57" (1/3) ... [2021-11-03 05:01:21,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc21798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:01:21, skipping insertion in model container [2021-11-03 05:01:21,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:02" (2/3) ... [2021-11-03 05:01:21,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc21798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:01:21, skipping insertion in model container [2021-11-03 05:01:21,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:01:21" (3/3) ... [2021-11-03 05:01:21,814 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness.i [2021-11-03 05:01:21,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:01:21,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-03 05:01:21,879 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:01:21,886 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 05:01:21,887 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-03 05:01:21,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 231 states have (on average 1.4805194805194806) internal successors, (342), 239 states have internal predecessors, (342), 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 05:01:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 05:01:21,922 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:21,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:01:21,923 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:01:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:21,930 INFO L85 PathProgramCache]: Analyzing trace with hash -731406764, now seen corresponding path program 1 times [2021-11-03 05:01:21,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:21,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853219739] [2021-11-03 05:01:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:21,957 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:21,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:21,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:22,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:01:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:27,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:01:27,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:27,384 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 05:01:27,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:27,693 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 05:01:27,693 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:27,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853219739] [2021-11-03 05:01:27,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853219739] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:27,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:27,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:01:27,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201636246] [2021-11-03 05:01:27,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:01:27,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:01:27,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:01:27,723 INFO L87 Difference]: Start difference. First operand has 240 states, 231 states have (on average 1.4805194805194806) internal successors, (342), 239 states have internal predecessors, (342), 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 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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 05:01:27,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:27,773 INFO L93 Difference]: Finished difference Result 476 states and 679 transitions. [2021-11-03 05:01:27,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:01:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2021-11-03 05:01:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:27,793 INFO L225 Difference]: With dead ends: 476 [2021-11-03 05:01:27,793 INFO L226 Difference]: Without dead ends: 234 [2021-11-03 05:01:27,798 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 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 05:01:27,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-03 05:01:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-03 05:01:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3982300884955752) internal successors, (316), 233 states have internal predecessors, (316), 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 05:01:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 316 transitions. [2021-11-03 05:01:27,859 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 316 transitions. Word has length 61 [2021-11-03 05:01:27,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:27,859 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 316 transitions. [2021-11-03 05:01:27,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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 05:01:27,860 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 316 transitions. [2021-11-03 05:01:27,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 05:01:27,863 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:27,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:01:27,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:28,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:28,077 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:01:28,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:28,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1678373439, now seen corresponding path program 1 times [2021-11-03 05:01:28,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:28,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970990284] [2021-11-03 05:01:28,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:28,087 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:28,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:28,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:28,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:01:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:32,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:01:32,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:33,016 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 05:01:33,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:33,349 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 05:01:33,350 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:33,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970990284] [2021-11-03 05:01:33,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970990284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:33,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:33,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:01:33,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114726094] [2021-11-03 05:01:33,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:01:33,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:33,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:01:33,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:01:33,359 INFO L87 Difference]: Start difference. First operand 234 states and 316 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 05:01:33,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:33,907 INFO L93 Difference]: Finished difference Result 664 states and 904 transitions. [2021-11-03 05:01:33,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:01:33,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2021-11-03 05:01:33,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:33,924 INFO L225 Difference]: With dead ends: 664 [2021-11-03 05:01:33,924 INFO L226 Difference]: Without dead ends: 452 [2021-11-03 05:01:33,929 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:01:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-11-03 05:01:33,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 240. [2021-11-03 05:01:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 232 states have (on average 1.3879310344827587) internal successors, (322), 239 states have internal predecessors, (322), 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 05:01:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 322 transitions. [2021-11-03 05:01:33,987 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 322 transitions. Word has length 61 [2021-11-03 05:01:33,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:33,990 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 322 transitions. [2021-11-03 05:01:33,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 05:01:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 322 transitions. [2021-11-03 05:01:33,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 05:01:33,997 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:33,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:01:34,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:34,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:34,230 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:01:34,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:34,230 INFO L85 PathProgramCache]: Analyzing trace with hash 453199775, now seen corresponding path program 1 times [2021-11-03 05:01:34,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:34,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293257733] [2021-11-03 05:01:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:34,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:34,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:34,237 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:34,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:01:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:38,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:01:38,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:39,115 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 05:01:39,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:39,451 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 05:01:39,451 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:39,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293257733] [2021-11-03 05:01:39,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293257733] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:39,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:39,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:01:39,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044952373] [2021-11-03 05:01:39,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:01:39,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:39,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:01:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:01:39,453 INFO L87 Difference]: Start difference. First operand 240 states and 322 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 05:01:39,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:39,759 INFO L93 Difference]: Finished difference Result 457 states and 617 transitions. [2021-11-03 05:01:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:01:39,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 65 [2021-11-03 05:01:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:39,762 INFO L225 Difference]: With dead ends: 457 [2021-11-03 05:01:39,762 INFO L226 Difference]: Without dead ends: 240 [2021-11-03 05:01:39,763 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:01:39,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-03 05:01:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234. [2021-11-03 05:01:39,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3805309734513274) internal successors, (312), 233 states have internal predecessors, (312), 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 05:01:39,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 312 transitions. [2021-11-03 05:01:39,797 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 312 transitions. Word has length 65 [2021-11-03 05:01:39,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:39,798 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 312 transitions. [2021-11-03 05:01:39,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 05:01:39,798 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 312 transitions. [2021-11-03 05:01:39,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 05:01:39,808 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:39,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:01:39,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:40,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:40,009 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:01:40,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:40,010 INFO L85 PathProgramCache]: Analyzing trace with hash 987656780, now seen corresponding path program 1 times [2021-11-03 05:01:40,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:40,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232127484] [2021-11-03 05:01:40,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:40,013 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:40,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:40,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:40,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:01:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:44,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 05:01:44,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:45,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 05:01:45,873 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 05:01:45,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:46,128 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 30 treesize of output 26 [2021-11-03 05:01:46,584 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 05:01:46,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:46,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232127484] [2021-11-03 05:01:46,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232127484] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:46,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:46,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 05:01:46,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4206874] [2021-11-03 05:01:46,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:01:46,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:46,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:01:46,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:01:46,587 INFO L87 Difference]: Start difference. First operand 234 states and 312 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 05:02:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:02:16,524 INFO L93 Difference]: Finished difference Result 526 states and 703 transitions. [2021-11-03 05:02:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 05:02:16,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2021-11-03 05:02:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:02:16,530 INFO L225 Difference]: With dead ends: 526 [2021-11-03 05:02:16,530 INFO L226 Difference]: Without dead ends: 327 [2021-11-03 05:02:16,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:02:16,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-11-03 05:02:16,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 236. [2021-11-03 05:02:16,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 228 states have (on average 1.3771929824561404) internal successors, (314), 235 states have internal predecessors, (314), 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 05:02:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 314 transitions. [2021-11-03 05:02:16,550 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 314 transitions. Word has length 71 [2021-11-03 05:02:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:02:16,550 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 314 transitions. [2021-11-03 05:02:16,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 05:02:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 314 transitions. [2021-11-03 05:02:16,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 05:02:16,552 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:02:16,553 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:16,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:02:16,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:02:16,757 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:02:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:02:16,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1379037814, now seen corresponding path program 1 times [2021-11-03 05:02:16,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:02:16,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206606407] [2021-11-03 05:02:16,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:16,762 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:02:16,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:02:16,763 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:02:16,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:02:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:21,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:02:21,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:22,057 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 05:02:22,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:22,510 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 05:02:22,510 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:02:22,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206606407] [2021-11-03 05:02:22,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206606407] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:02:22,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:02:22,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:02:22,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256280117] [2021-11-03 05:02:22,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:02:22,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:02:22,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:02:22,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:02:22,513 INFO L87 Difference]: Start difference. First operand 236 states and 314 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 05:02:22,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:02:22,814 INFO L93 Difference]: Finished difference Result 438 states and 590 transitions. [2021-11-03 05:02:22,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:02:22,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2021-11-03 05:02:22,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:02:22,819 INFO L225 Difference]: With dead ends: 438 [2021-11-03 05:02:22,819 INFO L226 Difference]: Without dead ends: 234 [2021-11-03 05:02:22,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:02:22,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-03 05:02:22,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-03 05:02:22,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3672566371681416) internal successors, (309), 233 states have internal predecessors, (309), 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 05:02:22,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 309 transitions. [2021-11-03 05:02:22,834 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 309 transitions. Word has length 71 [2021-11-03 05:02:22,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:02:22,835 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 309 transitions. [2021-11-03 05:02:22,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 05:02:22,835 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 309 transitions. [2021-11-03 05:02:22,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-03 05:02:22,837 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:02:22,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:22,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:02:23,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:02:23,061 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:02:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:02:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash 319727697, now seen corresponding path program 1 times [2021-11-03 05:02:23,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:02:23,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69782414] [2021-11-03 05:02:23,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:23,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:02:23,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:02:23,067 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:02:23,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:02:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:27,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 05:02:27,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:28,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 05:02:28,474 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 16 treesize of output 8 [2021-11-03 05:02:28,720 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 05:02:28,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:28,990 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 30 treesize of output 26 [2021-11-03 05:02:29,423 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 05:02:29,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:02:29,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69782414] [2021-11-03 05:02:29,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69782414] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:02:29,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:02:29,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 05:02:29,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323066323] [2021-11-03 05:02:29,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:02:29,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:02:29,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:02:29,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:02:29,427 INFO L87 Difference]: Start difference. First operand 234 states and 309 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 05:02:55,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:02:55,051 INFO L93 Difference]: Finished difference Result 740 states and 989 transitions. [2021-11-03 05:02:55,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 05:02:55,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 73 [2021-11-03 05:02:55,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:02:55,058 INFO L225 Difference]: With dead ends: 740 [2021-11-03 05:02:55,059 INFO L226 Difference]: Without dead ends: 540 [2021-11-03 05:02:55,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:02:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-11-03 05:02:55,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 234. [2021-11-03 05:02:55,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3628318584070795) internal successors, (308), 233 states have internal predecessors, (308), 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 05:02:55,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 308 transitions. [2021-11-03 05:02:55,078 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 308 transitions. Word has length 73 [2021-11-03 05:02:55,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:02:55,079 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 308 transitions. [2021-11-03 05:02:55,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 05:02:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 308 transitions. [2021-11-03 05:02:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 05:02:55,081 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:02:55,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:55,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 05:02:55,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:02:55,305 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:02:55,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:02:55,306 INFO L85 PathProgramCache]: Analyzing trace with hash 568545786, now seen corresponding path program 1 times [2021-11-03 05:02:55,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:02:55,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038844850] [2021-11-03 05:02:55,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:55,310 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:02:55,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:02:55,311 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:02:55,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:03:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:00,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:03:00,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:01,138 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 05:03:01,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:01,389 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 05:03:01,389 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:01,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038844850] [2021-11-03 05:03:01,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038844850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:01,390 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:01,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:03:01,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440982890] [2021-11-03 05:03:01,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:03:01,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:01,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:03:01,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:03:01,392 INFO L87 Difference]: Start difference. First operand 234 states and 308 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 05:03:04,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:04,394 INFO L93 Difference]: Finished difference Result 409 states and 543 transitions. [2021-11-03 05:03:04,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:03:04,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2021-11-03 05:03:04,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:04,401 INFO L225 Difference]: With dead ends: 409 [2021-11-03 05:03:04,401 INFO L226 Difference]: Without dead ends: 234 [2021-11-03 05:03:04,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:03:04,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-03 05:03:04,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-03 05:03:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3584070796460177) internal successors, (307), 233 states have internal predecessors, (307), 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 05:03:04,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 307 transitions. [2021-11-03 05:03:04,417 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 307 transitions. Word has length 74 [2021-11-03 05:03:04,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:04,418 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 307 transitions. [2021-11-03 05:03:04,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 05:03:04,418 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 307 transitions. [2021-11-03 05:03:04,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:03:04,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:04,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:04,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:04,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:04,633 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:03:04,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:04,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1694478960, now seen corresponding path program 1 times [2021-11-03 05:03:04,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:04,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418391118] [2021-11-03 05:03:04,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:04,638 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:04,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:04,639 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:04,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:03:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:10,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:03:10,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:10,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 05:03:10,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-03 05:03:10,576 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 05:03:10,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:11,047 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 05:03:11,047 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:11,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418391118] [2021-11-03 05:03:11,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418391118] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:11,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:11,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:03:11,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330300000] [2021-11-03 05:03:11,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:03:11,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:11,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:03:11,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:03:11,049 INFO L87 Difference]: Start difference. First operand 234 states and 307 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 05:03:20,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:20,707 INFO L93 Difference]: Finished difference Result 426 states and 561 transitions. [2021-11-03 05:03:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:03:20,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 75 [2021-11-03 05:03:20,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:20,712 INFO L225 Difference]: With dead ends: 426 [2021-11-03 05:03:20,712 INFO L226 Difference]: Without dead ends: 251 [2021-11-03 05:03:20,713 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:03:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-03 05:03:20,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 234. [2021-11-03 05:03:20,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 226 states have (on average 1.3539823008849559) internal successors, (306), 233 states have internal predecessors, (306), 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 05:03:20,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 306 transitions. [2021-11-03 05:03:20,730 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 306 transitions. Word has length 75 [2021-11-03 05:03:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:20,731 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 306 transitions. [2021-11-03 05:03:20,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 05:03:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 306 transitions. [2021-11-03 05:03:20,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 05:03:20,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:20,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:20,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:20,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:20,949 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:03:20,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:20,949 INFO L85 PathProgramCache]: Analyzing trace with hash -715712101, now seen corresponding path program 1 times [2021-11-03 05:03:20,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:20,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408422550] [2021-11-03 05:03:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:20,953 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:20,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:20,954 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:20,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:03:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:25,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1820 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:03:25,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:26,201 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 05:03:26,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:26,461 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 05:03:26,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:26,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408422550] [2021-11-03 05:03:26,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408422550] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:26,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:26,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:03:26,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661251967] [2021-11-03 05:03:26,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:03:26,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:26,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:03:26,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:03:26,463 INFO L87 Difference]: Start difference. First operand 234 states and 306 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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 05:03:28,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:28,871 INFO L93 Difference]: Finished difference Result 461 states and 597 transitions. [2021-11-03 05:03:28,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:03:28,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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) Word has length 81 [2021-11-03 05:03:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:28,874 INFO L225 Difference]: With dead ends: 461 [2021-11-03 05:03:28,874 INFO L226 Difference]: Without dead ends: 282 [2021-11-03 05:03:28,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:03:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-03 05:03:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 232. [2021-11-03 05:03:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 224 states have (on average 1.3214285714285714) internal successors, (296), 231 states have internal predecessors, (296), 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 05:03:28,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 296 transitions. [2021-11-03 05:03:28,890 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 296 transitions. Word has length 81 [2021-11-03 05:03:28,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:28,890 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 296 transitions. [2021-11-03 05:03:28,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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 05:03:28,891 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 296 transitions. [2021-11-03 05:03:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-03 05:03:28,892 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:28,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:28,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:29,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:29,101 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:03:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:29,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1240502002, now seen corresponding path program 1 times [2021-11-03 05:03:29,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:29,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646264051] [2021-11-03 05:03:29,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:29,113 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:29,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:29,118 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:29,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:03:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:34,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:03:34,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:34,525 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 05:03:34,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:34,839 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 05:03:34,839 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:34,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646264051] [2021-11-03 05:03:34,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646264051] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:34,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:34,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:03:34,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927285036] [2021-11-03 05:03:34,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:03:34,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:34,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:03:34,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:03:34,842 INFO L87 Difference]: Start difference. First operand 232 states and 296 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 05:03:37,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:37,457 INFO L93 Difference]: Finished difference Result 487 states and 623 transitions. [2021-11-03 05:03:37,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:03:37,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 92 [2021-11-03 05:03:37,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:37,460 INFO L225 Difference]: With dead ends: 487 [2021-11-03 05:03:37,461 INFO L226 Difference]: Without dead ends: 299 [2021-11-03 05:03:37,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:03:37,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-03 05:03:37,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 241. [2021-11-03 05:03:37,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 233 states have (on average 1.3004291845493563) internal successors, (303), 240 states have internal predecessors, (303), 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 05:03:37,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 303 transitions. [2021-11-03 05:03:37,503 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 303 transitions. Word has length 92 [2021-11-03 05:03:37,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:37,503 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 303 transitions. [2021-11-03 05:03:37,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 05:03:37,504 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 303 transitions. [2021-11-03 05:03:37,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 05:03:37,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:37,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:03:37,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:37,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:37,729 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:03:37,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:37,729 INFO L85 PathProgramCache]: Analyzing trace with hash 378447726, now seen corresponding path program 1 times [2021-11-03 05:03:37,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:37,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079235112] [2021-11-03 05:03:37,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:37,733 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:37,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:37,734 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:37,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:03:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:42,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:03:42,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:43,340 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 32 treesize of output 24 [2021-11-03 05:03:43,348 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 21 treesize of output 13 [2021-11-03 05:03:43,647 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 05:03:43,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:44,187 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 05:03:44,187 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:44,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079235112] [2021-11-03 05:03:44,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079235112] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:44,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:44,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:03:44,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560287914] [2021-11-03 05:03:44,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:03:44,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:44,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:03:44,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:03:44,190 INFO L87 Difference]: Start difference. First operand 241 states and 303 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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 05:04:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:02,436 INFO L93 Difference]: Finished difference Result 478 states and 608 transitions. [2021-11-03 05:04:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:04:02,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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 96 [2021-11-03 05:04:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:02,443 INFO L225 Difference]: With dead ends: 478 [2021-11-03 05:04:02,443 INFO L226 Difference]: Without dead ends: 283 [2021-11-03 05:04:02,448 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:04:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-03 05:04:02,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 241. [2021-11-03 05:04:02,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 233 states have (on average 1.2703862660944205) internal successors, (296), 240 states have internal predecessors, (296), 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 05:04:02,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 296 transitions. [2021-11-03 05:04:02,467 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 296 transitions. Word has length 96 [2021-11-03 05:04:02,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:02,467 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 296 transitions. [2021-11-03 05:04:02,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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 05:04:02,467 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 296 transitions. [2021-11-03 05:04:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-03 05:04:02,468 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:02,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:04:02,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:02,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:04:02,669 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:04:02,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:02,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1820616346, now seen corresponding path program 1 times [2021-11-03 05:04:02,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:02,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066526732] [2021-11-03 05:04:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:02,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:02,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:02,674 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:02,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:04:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:08,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1906 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-03 05:04:08,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:10,221 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:04:10,221 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 54 [2021-11-03 05:04:10,266 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:04:10,266 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2021-11-03 05:04:10,779 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 05:04:10,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:12,272 INFO L354 Elim1Store]: treesize reduction 8, result has 91.2 percent of original size [2021-11-03 05:04:12,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 122 [2021-11-03 05:04:12,636 INFO L354 Elim1Store]: treesize reduction 22, result has 67.2 percent of original size [2021-11-03 05:04:12,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 122 [2021-11-03 05:04:15,731 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 05:04:15,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:15,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066526732] [2021-11-03 05:04:15,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066526732] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:15,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:04:15,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 15 [2021-11-03 05:04:15,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608631119] [2021-11-03 05:04:15,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 05:04:15,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:15,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 05:04:15,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:04:15,735 INFO L87 Difference]: Start difference. First operand 241 states and 296 transitions. Second operand has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 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 05:05:00,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:05:00,243 INFO L93 Difference]: Finished difference Result 589 states and 728 transitions. [2021-11-03 05:05:00,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-03 05:05:00,246 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 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 98 [2021-11-03 05:05:00,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:05:00,249 INFO L225 Difference]: With dead ends: 589 [2021-11-03 05:05:00,249 INFO L226 Difference]: Without dead ends: 462 [2021-11-03 05:05:00,251 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=275, Invalid=781, Unknown=0, NotChecked=0, Total=1056 [2021-11-03 05:05:00,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-11-03 05:05:00,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 273. [2021-11-03 05:05:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 265 states have (on average 1.290566037735849) internal successors, (342), 272 states have internal predecessors, (342), 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 05:05:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 342 transitions. [2021-11-03 05:05:00,280 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 342 transitions. Word has length 98 [2021-11-03 05:05:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:05:00,280 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 342 transitions. [2021-11-03 05:05:00,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 15 states have internal predecessors, (104), 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 05:05:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 342 transitions. [2021-11-03 05:05:00,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-03 05:05:00,282 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:05:00,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:00,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 05:05:00,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:05:00,497 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:05:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:05:00,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1887544936, now seen corresponding path program 1 times [2021-11-03 05:05:00,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:05:00,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829765820] [2021-11-03 05:05:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:00,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:05:00,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:05:00,504 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:05:00,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 05:05:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:05:06,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 05:05:06,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:05:07,523 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 35 treesize of output 27 [2021-11-03 05:05:07,531 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 27 treesize of output 19 [2021-11-03 05:05:07,665 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 05:05:07,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:05:08,257 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-11-03 05:05:08,257 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 32 treesize of output 31 [2021-11-03 05:05:08,277 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-03 05:05:08,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2021-11-03 05:05:08,448 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 05:05:08,448 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:05:08,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829765820] [2021-11-03 05:05:08,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829765820] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:05:08,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:05:08,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-03 05:05:08,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129621787] [2021-11-03 05:05:08,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:05:08,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:05:08,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:05:08,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:05:08,451 INFO L87 Difference]: Start difference. First operand 273 states and 342 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 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 05:05:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:05:28,619 INFO L93 Difference]: Finished difference Result 670 states and 847 transitions. [2021-11-03 05:05:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 05:05:28,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 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) Word has length 98 [2021-11-03 05:05:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:05:28,625 INFO L225 Difference]: With dead ends: 670 [2021-11-03 05:05:28,625 INFO L226 Difference]: Without dead ends: 484 [2021-11-03 05:05:28,626 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-11-03 05:05:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-03 05:05:28,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 271. [2021-11-03 05:05:28,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 263 states have (on average 1.273764258555133) internal successors, (335), 270 states have internal predecessors, (335), 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 05:05:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 335 transitions. [2021-11-03 05:05:28,653 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 335 transitions. Word has length 98 [2021-11-03 05:05:28,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:05:28,653 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 335 transitions. [2021-11-03 05:05:28,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 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 05:05:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 335 transitions. [2021-11-03 05:05:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-03 05:05:28,655 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:05:28,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:28,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-03 05:05:28,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:05:28,869 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:05:28,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:05:28,870 INFO L85 PathProgramCache]: Analyzing trace with hash 557058740, now seen corresponding path program 1 times [2021-11-03 05:05:28,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:05:28,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905514697] [2021-11-03 05:05:28,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:28,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:05:28,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:05:28,875 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:05:28,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:05:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:05:36,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:05:36,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:05:36,725 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 05:05:36,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:05:37,311 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 05:05:37,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:05:37,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905514697] [2021-11-03 05:05:37,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905514697] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:05:37,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:05:37,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 05:05:37,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725596968] [2021-11-03 05:05:37,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:05:37,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:05:37,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:05:37,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:05:37,314 INFO L87 Difference]: Start difference. First operand 271 states and 335 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 05:05:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:05:42,264 INFO L93 Difference]: Finished difference Result 458 states and 570 transitions. [2021-11-03 05:05:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:05:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 101 [2021-11-03 05:05:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:05:42,271 INFO L225 Difference]: With dead ends: 458 [2021-11-03 05:05:42,271 INFO L226 Difference]: Without dead ends: 362 [2021-11-03 05:05:42,271 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:05:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-03 05:05:42,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 304. [2021-11-03 05:05:42,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 296 states have (on average 1.2804054054054055) internal successors, (379), 303 states have internal predecessors, (379), 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 05:05:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 379 transitions. [2021-11-03 05:05:42,296 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 379 transitions. Word has length 101 [2021-11-03 05:05:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:05:42,297 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 379 transitions. [2021-11-03 05:05:42,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 05:05:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 379 transitions. [2021-11-03 05:05:42,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-03 05:05:42,299 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:05:42,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:42,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:05:42,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:05:42,525 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:05:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:05:42,526 INFO L85 PathProgramCache]: Analyzing trace with hash 88711003, now seen corresponding path program 1 times [2021-11-03 05:05:42,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:05:42,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132724917] [2021-11-03 05:05:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:42,530 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:05:42,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:05:42,533 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:05:42,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7576de77-9f5f-4178-bada-a671fdc37b08/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 05:07:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:13,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 1933 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-03 05:07:13,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:15,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:15,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 109 [2021-11-03 05:07:18,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:07:18,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,199 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:07:18,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,237 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:07:18,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,249 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:07:18,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:07:18,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:07:18,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:07:18,305 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:07:18,728 INFO L354 Elim1Store]: treesize reduction 232, result has 27.7 percent of original size [2021-11-03 05:07:18,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 50 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 533 treesize of output 357 [2021-11-03 05:07:20,564 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:07:20,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 507 treesize of output 411 [2021-11-03 05:07:21,069 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 05:07:21,069 INFO L328 TraceCheckSpWp]: Computing backward predicates...