./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_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_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/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_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/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_eb129aed-d00d-4e62-9a2f-62aa87211262/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 bd5e922bebe187c1230ec455171e0dbeb52eef7c95cec8ebc1ad02d91040db3c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:13:29,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:13:29,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:13:29,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:13:29,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:13:29,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:13:29,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:13:29,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:13:29,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:13:29,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:13:29,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:13:29,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:13:29,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:13:29,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:13:29,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:13:29,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:13:29,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:13:29,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:13:29,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:13:29,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:13:29,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:13:29,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:13:29,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:13:29,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:13:29,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:13:29,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:13:29,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:13:29,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:13:29,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:13:29,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:13:29,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:13:29,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:13:29,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:13:29,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:13:29,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:13:29,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:13:29,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:13:29,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:13:29,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:13:29,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:13:29,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:13:29,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:13:29,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:13:29,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:13:29,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:13:29,634 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:13:29,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:13:29,634 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:13:29,635 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:13:29,635 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:13:29,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:13:29,635 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:13:29,635 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:13:29,636 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:13:29,636 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:13:29,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:13:29,636 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:13:29,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:13:29,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:13:29,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:13:29,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:13:29,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:13:29,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:13:29,638 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:13:29,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:13:29,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:13:29,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:13:29,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:13:29,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:13:29,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:29,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:13:29,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:13:29,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:13:29,640 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:13:29,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:13:29,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:13:29,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:13:29,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:13:29,641 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_eb129aed-d00d-4e62-9a2f-62aa87211262/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5e922bebe187c1230ec455171e0dbeb52eef7c95cec8ebc1ad02d91040db3c [2021-11-03 04:13:29,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:13:29,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:13:29,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:13:29,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:13:29,978 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:13:29,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i [2021-11-03 04:13:30,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data/d53428757/59fa70884e034648884e875cb8f160da/FLAG9650bd4ee [2021-11-03 04:13:30,991 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:13:30,992 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i [2021-11-03 04:13:31,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data/d53428757/59fa70884e034648884e875cb8f160da/FLAG9650bd4ee [2021-11-03 04:13:31,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data/d53428757/59fa70884e034648884e875cb8f160da [2021-11-03 04:13:31,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:13:31,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:13:31,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:31,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:13:31,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:13:31,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:31" (1/1) ... [2021-11-03 04:13:31,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ef62cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:31, skipping insertion in model container [2021-11-03 04:13:31,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:31" (1/1) ... [2021-11-03 04:13:31,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:13:31,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:31,878 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_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4497,4510] [2021-11-03 04:13:31,886 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_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4557,4570] [2021-11-03 04:13:31,912 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:31,919 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:32,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,941 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,965 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,965 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,977 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:33,475 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:33,476 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:33,478 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:33,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:33,481 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:33,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:33,483 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:33,484 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:33,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:33,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:33,690 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:33,710 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:13:33,717 INFO L168 Benchmark]: Toolchain (without parser) took 2268.66 ms. Allocated memory was 109.1 MB in the beginning and 151.0 MB in the end (delta: 41.9 MB). Free memory was 68.1 MB in the beginning and 90.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:13:33,718 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:13:33,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2264.23 ms. Allocated memory was 109.1 MB in the beginning and 151.0 MB in the end (delta: 41.9 MB). Free memory was 68.1 MB in the beginning and 90.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:13:33,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2264.23 ms. Allocated memory was 109.1 MB in the beginning and 151.0 MB in the end (delta: 41.9 MB). Free memory was 68.1 MB in the beginning and 90.0 MB in the end (delta: -21.9 MB). Peak memory consumption was 19.9 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_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/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_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/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_eb129aed-d00d-4e62-9a2f-62aa87211262/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 bd5e922bebe187c1230ec455171e0dbeb52eef7c95cec8ebc1ad02d91040db3c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:13:36,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:13:36,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:13:36,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:13:36,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:13:36,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:13:36,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:13:36,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:13:36,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:13:36,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:13:36,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:13:36,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:13:36,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:13:36,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:13:36,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:13:36,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:13:36,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:13:36,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:13:36,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:13:36,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:13:36,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:13:36,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:13:36,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:13:36,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:13:36,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:13:36,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:13:36,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:13:36,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:13:36,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:13:36,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:13:36,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:13:36,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:13:36,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:13:36,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:13:36,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:13:36,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:13:36,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:13:36,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:13:36,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:13:36,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:13:36,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:13:36,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:13:36,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:13:36,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:13:36,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:13:36,348 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:13:36,348 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:13:36,348 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:13:36,348 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:13:36,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:13:36,349 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:13:36,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:13:36,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:13:36,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:13:36,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:13:36,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:13:36,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:13:36,353 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:13:36,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:13:36,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:13:36,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:13:36,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:13:36,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:13:36,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:13:36,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:13:36,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:36,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:13:36,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:13:36,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:13:36,356 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:13:36,356 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:13:36,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:13:36,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:13:36,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:13:36,357 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_eb129aed-d00d-4e62-9a2f-62aa87211262/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5e922bebe187c1230ec455171e0dbeb52eef7c95cec8ebc1ad02d91040db3c [2021-11-03 04:13:36,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:13:36,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:13:36,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:13:36,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:13:36,847 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:13:36,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i [2021-11-03 04:13:36,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data/7179565c8/2471ca5e05b54f6ea0f3d12af232e0ad/FLAG0f84ce69c [2021-11-03 04:13:37,968 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:13:37,969 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i [2021-11-03 04:13:38,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data/7179565c8/2471ca5e05b54f6ea0f3d12af232e0ad/FLAG0f84ce69c [2021-11-03 04:13:38,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/data/7179565c8/2471ca5e05b54f6ea0f3d12af232e0ad [2021-11-03 04:13:38,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:13:38,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:13:38,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:38,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:13:38,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:13:38,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:38" (1/1) ... [2021-11-03 04:13:38,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602d2014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:38, skipping insertion in model container [2021-11-03 04:13:38,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:38" (1/1) ... [2021-11-03 04:13:38,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:13:38,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:38,832 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_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4497,4510] [2021-11-03 04:13:38,868 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_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4557,4570] [2021-11-03 04:13:38,898 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:38,911 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:39,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,878 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,328 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:40,329 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:40,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:40,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:40,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:40,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:40,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:40,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:40,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:40,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:40,647 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:40,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:40,959 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:13:41,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:41,047 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_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4497,4510] [2021-11-03 04:13:41,048 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_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4557,4570] [2021-11-03 04:13:41,051 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:41,053 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:41,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,142 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,142 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,187 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:41,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:41,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:41,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:41,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:41,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:41,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:41,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:41,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:41,194 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:41,221 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:41,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:41,426 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:13:41,444 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_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4497,4510] [2021-11-03 04:13:41,444 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_eb129aed-d00d-4e62-9a2f-62aa87211262/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_array_harness.i[4557,4570] [2021-11-03 04:13:41,452 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:41,453 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:41,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,509 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:41,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:41,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:41,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:41,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:41,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:41,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:41,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:41,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:41,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:41,573 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:41,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:41,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:42,150 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:13:42,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42 WrapperNode [2021-11-03 04:13:42,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:42,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:13:42,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:13:42,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:13:42,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:13:42,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:13:42,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:13:42,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:13:42,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:13:42,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:13:42,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:13:42,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:13:42,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (1/1) ... [2021-11-03 04:13:42,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:42,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:13:42,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:13:42,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:13:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:13:42,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:13:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:13:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:13:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:13:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:13:42,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:13:42,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:13:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:13:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:13:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:13:42,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:13:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:13:42,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:13:58,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:13:58,772 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-11-03 04:13:58,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:13:58 BoogieIcfgContainer [2021-11-03 04:13:58,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:13:58,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:13:58,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:13:58,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:13:58,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:13:38" (1/3) ... [2021-11-03 04:13:58,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81630e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:13:58, skipping insertion in model container [2021-11-03 04:13:58,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:42" (2/3) ... [2021-11-03 04:13:58,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81630e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:13:58, skipping insertion in model container [2021-11-03 04:13:58,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:13:58" (3/3) ... [2021-11-03 04:13:58,794 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_array_harness.i [2021-11-03 04:13:58,801 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:13:58,801 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-03 04:13:58,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:13:58,884 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 04:13:58,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-03 04:13:58,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 77 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 04:13:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 04:13:58,907 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:58,908 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:13:58,908 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:13:58,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:58,919 INFO L85 PathProgramCache]: Analyzing trace with hash 810375617, now seen corresponding path program 1 times [2021-11-03 04:13:58,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:58,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009259087] [2021-11-03 04:13:58,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:58,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:58,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:58,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:59,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:14:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:03,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:14:03,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:03,241 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 04:14:03,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:03,320 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 04:14:03,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:03,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009259087] [2021-11-03 04:14:03,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009259087] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:03,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:03,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:14:03,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991527176] [2021-11-03 04:14:03,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:14:03,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:03,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:14:03,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:14:03,344 INFO L87 Difference]: Start difference. First operand has 78 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 77 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) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 04:14:03,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:03,369 INFO L93 Difference]: Finished difference Result 153 states and 204 transitions. [2021-11-03 04:14:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:14:03,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2021-11-03 04:14:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:03,379 INFO L225 Difference]: With dead ends: 153 [2021-11-03 04:14:03,379 INFO L226 Difference]: Without dead ends: 71 [2021-11-03 04:14:03,382 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 04:14:03,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-03 04:14:03,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-03 04:14:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.328125) internal successors, (85), 70 states have internal predecessors, (85), 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 04:14:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 85 transitions. [2021-11-03 04:14:03,418 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 85 transitions. Word has length 14 [2021-11-03 04:14:03,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:03,419 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 85 transitions. [2021-11-03 04:14:03,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 04:14:03,419 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2021-11-03 04:14:03,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 04:14:03,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:03,420 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:14:03,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:03,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:03,639 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:14:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1068541055, now seen corresponding path program 1 times [2021-11-03 04:14:03,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:03,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568452828] [2021-11-03 04:14:03,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:03,656 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:03,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:03,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:03,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:14:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:07,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:14:07,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:08,077 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 04:14:08,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:08,148 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 04:14:08,148 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:08,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568452828] [2021-11-03 04:14:08,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568452828] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:08,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:08,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:14:08,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309057774] [2021-11-03 04:14:08,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:14:08,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:08,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:14:08,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:14:08,152 INFO L87 Difference]: Start difference. First operand 71 states and 85 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 04:14:10,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:10,286 INFO L93 Difference]: Finished difference Result 120 states and 140 transitions. [2021-11-03 04:14:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:14:10,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-11-03 04:14:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:10,289 INFO L225 Difference]: With dead ends: 120 [2021-11-03 04:14:10,289 INFO L226 Difference]: Without dead ends: 71 [2021-11-03 04:14:10,290 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:14:10,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-03 04:14:10,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-03 04:14:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.3125) internal successors, (84), 70 states have internal predecessors, (84), 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 04:14:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2021-11-03 04:14:10,301 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 14 [2021-11-03 04:14:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:10,301 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2021-11-03 04:14:10,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 04:14:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2021-11-03 04:14:10,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 04:14:10,303 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:10,303 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] [2021-11-03 04:14:10,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 04:14:10,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:10,523 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:14:10,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash -715146382, now seen corresponding path program 1 times [2021-11-03 04:14:10,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:10,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695865923] [2021-11-03 04:14:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:10,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:10,543 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:10,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:14:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:14,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:14:14,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:14,778 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 04:14:14,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:14,855 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 04:14:14,855 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:14,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695865923] [2021-11-03 04:14:14,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695865923] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:14,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:14,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:14:14,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675863461] [2021-11-03 04:14:14,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:14:14,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:14,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:14:14,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:14:14,858 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 04:14:18,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:18,444 INFO L93 Difference]: Finished difference Result 173 states and 214 transitions. [2021-11-03 04:14:18,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:14:18,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2021-11-03 04:14:18,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:18,446 INFO L225 Difference]: With dead ends: 173 [2021-11-03 04:14:18,447 INFO L226 Difference]: Without dead ends: 115 [2021-11-03 04:14:18,447 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 04:14:18,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-03 04:14:18,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 75. [2021-11-03 04:14:18,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 74 states have internal predecessors, (88), 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 04:14:18,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2021-11-03 04:14:18,458 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 20 [2021-11-03 04:14:18,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:18,459 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2021-11-03 04:14:18,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 04:14:18,459 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2021-11-03 04:14:18,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 04:14:18,460 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:18,461 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] [2021-11-03 04:14:18,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:14:18,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:18,683 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:14:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1524493008, now seen corresponding path program 1 times [2021-11-03 04:14:18,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:18,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410568672] [2021-11-03 04:14:18,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:18,687 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:18,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:18,688 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:18,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:14:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:22,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1712 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:14:22,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:22,765 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 04:14:22,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:22,844 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 04:14:22,844 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:22,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410568672] [2021-11-03 04:14:22,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410568672] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:22,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:22,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:14:22,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531872792] [2021-11-03 04:14:22,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:14:22,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:22,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:14:22,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:14:22,848 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 04:14:28,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:28,817 INFO L93 Difference]: Finished difference Result 167 states and 202 transitions. [2021-11-03 04:14:28,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:14:28,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2021-11-03 04:14:28,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:28,820 INFO L225 Difference]: With dead ends: 167 [2021-11-03 04:14:28,820 INFO L226 Difference]: Without dead ends: 115 [2021-11-03 04:14:28,821 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:14:28,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-03 04:14:28,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 79. [2021-11-03 04:14:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 78 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 04:14:28,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2021-11-03 04:14:28,835 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 20 [2021-11-03 04:14:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:28,835 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2021-11-03 04:14:28,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 04:14:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2021-11-03 04:14:28,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 04:14:28,837 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:28,837 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] [2021-11-03 04:14:28,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:14:29,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:29,047 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:14:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:29,048 INFO L85 PathProgramCache]: Analyzing trace with hash -322119372, now seen corresponding path program 1 times [2021-11-03 04:14:29,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:29,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738374063] [2021-11-03 04:14:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:29,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:29,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:29,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:29,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:14:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:33,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1717 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:14:33,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:33,172 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 04:14:33,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:33,304 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 04:14:33,304 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:33,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738374063] [2021-11-03 04:14:33,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738374063] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:33,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:33,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 04:14:33,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389105060] [2021-11-03 04:14:33,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:14:33,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:33,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:14:33,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:14:33,307 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 04:14:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:40,105 INFO L93 Difference]: Finished difference Result 139 states and 158 transitions. [2021-11-03 04:14:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:14:40,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 20 [2021-11-03 04:14:40,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:40,108 INFO L225 Difference]: With dead ends: 139 [2021-11-03 04:14:40,109 INFO L226 Difference]: Without dead ends: 135 [2021-11-03 04:14:40,109 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:14:40,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-03 04:14:40,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 87. [2021-11-03 04:14:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.25) internal successors, (100), 86 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 04:14:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2021-11-03 04:14:40,120 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 20 [2021-11-03 04:14:40,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:40,120 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2021-11-03 04:14:40,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 04:14:40,121 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2021-11-03 04:14:40,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:14:40,122 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:40,122 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:14:40,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:40,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:40,339 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:14:40,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:40,340 INFO L85 PathProgramCache]: Analyzing trace with hash -2144800216, now seen corresponding path program 1 times [2021-11-03 04:14:40,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:40,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154627951] [2021-11-03 04:14:40,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:40,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:40,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:40,367 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:40,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:14:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:59,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-03 04:14:59,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:59,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 132 [2021-11-03 04:15:01,697 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:15:01,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 329 treesize of output 137 [2021-11-03 04:15:01,850 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 04:15:01,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:05,091 INFO L354 Elim1Store]: treesize reduction 9046, result has 0.0 percent of original size [2021-11-03 04:15:05,091 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 16 case distinctions, treesize of input 240 treesize of output 1 [2021-11-03 04:15:05,105 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 04:15:05,106 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:05,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154627951] [2021-11-03 04:15:05,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154627951] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:05,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:05,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 10 [2021-11-03 04:15:05,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868579720] [2021-11-03 04:15:05,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 04:15:05,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:05,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 04:15:05,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:15:05,108 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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 04:15:16,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:16,446 INFO L93 Difference]: Finished difference Result 153 states and 174 transitions. [2021-11-03 04:15:16,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:15:16,449 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 04:15:16,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:16,450 INFO L225 Difference]: With dead ends: 153 [2021-11-03 04:15:16,450 INFO L226 Difference]: Without dead ends: 94 [2021-11-03 04:15:16,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:15:16,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-03 04:15:16,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2021-11-03 04:15:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 88 states have internal predecessors, (102), 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 04:15:16,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 102 transitions. [2021-11-03 04:15:16,462 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 102 transitions. Word has length 24 [2021-11-03 04:15:16,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:16,462 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 102 transitions. [2021-11-03 04:15:16,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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 04:15:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 102 transitions. [2021-11-03 04:15:16,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:15:16,464 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:16,464 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:15:16,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:16,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:16,678 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:15:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:16,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1464741846, now seen corresponding path program 1 times [2021-11-03 04:15:16,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:16,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771345585] [2021-11-03 04:15:16,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:16,682 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:16,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:16,682 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:16,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:15:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:28,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 04:15:28,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:28,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 132 [2021-11-03 04:15:30,319 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:15:30,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 287 treesize of output 127 [2021-11-03 04:15:30,444 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 04:15:30,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:36,648 WARN L207 SmtUtils]: Spent 5.43 s on a formula simplification. DAG size of input: 719 DAG size of output: 92 [2021-11-03 04:15:36,649 INFO L354 Elim1Store]: treesize reduction 8872, result has 1.9 percent of original size [2021-11-03 04:15:36,650 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 16 case distinctions, treesize of input 245 treesize of output 305 [2021-11-03 04:15:36,681 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-03 04:15:36,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 305 treesize of output 115 [2021-11-03 04:15:37,210 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 04:15:37,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:37,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771345585] [2021-11-03 04:15:37,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771345585] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:37,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:37,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 16 [2021-11-03 04:15:37,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130880004] [2021-11-03 04:15:37,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 04:15:37,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:37,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 04:15:37,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:15:37,213 INFO L87 Difference]: Start difference. First operand 89 states and 102 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 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 04:15:46,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:46,348 INFO L93 Difference]: Finished difference Result 173 states and 197 transitions. [2021-11-03 04:15:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:15:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 04:15:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:46,351 INFO L225 Difference]: With dead ends: 173 [2021-11-03 04:15:46,351 INFO L226 Difference]: Without dead ends: 110 [2021-11-03 04:15:46,352 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:15:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-03 04:15:46,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2021-11-03 04:15:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 91 states have internal predecessors, (105), 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 04:15:46,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2021-11-03 04:15:46,364 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 24 [2021-11-03 04:15:46,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:46,364 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2021-11-03 04:15:46,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 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 04:15:46,365 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2021-11-03 04:15:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:15:46,366 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:46,366 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:15:46,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 04:15:46,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:46,578 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:15:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:46,578 INFO L85 PathProgramCache]: Analyzing trace with hash -711790034, now seen corresponding path program 1 times [2021-11-03 04:15:46,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:46,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101535053] [2021-11-03 04:15:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:46,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:46,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:46,582 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:46,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:15:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:58,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 04:15:58,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:58,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 136 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 135 [2021-11-03 04:15:58,953 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:15:58,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 240 treesize of output 112 [2021-11-03 04:15:59,072 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 04:15:59,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:04,888 WARN L207 SmtUtils]: Spent 5.55 s on a formula simplification. DAG size of input: 719 DAG size of output: 92 [2021-11-03 04:16:04,892 INFO L354 Elim1Store]: treesize reduction 8872, result has 1.9 percent of original size [2021-11-03 04:16:04,892 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 16 case distinctions, treesize of input 181 treesize of output 241 [2021-11-03 04:16:04,928 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-03 04:16:04,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 241 treesize of output 99 [2021-11-03 04:16:05,008 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 04:16:05,008 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:16:05,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101535053] [2021-11-03 04:16:05,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101535053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:16:05,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:16:05,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-11-03 04:16:05,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426724815] [2021-11-03 04:16:05,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:16:05,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:16:05,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:16:05,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:16:05,010 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 04:16:10,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:16:10,622 INFO L93 Difference]: Finished difference Result 206 states and 236 transitions. [2021-11-03 04:16:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:16:10,625 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 04:16:10,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:16:10,626 INFO L225 Difference]: With dead ends: 206 [2021-11-03 04:16:10,626 INFO L226 Difference]: Without dead ends: 130 [2021-11-03 04:16:10,627 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:16:10,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-03 04:16:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 95. [2021-11-03 04:16:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 94 states have internal predecessors, (108), 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 04:16:10,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-11-03 04:16:10,636 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 24 [2021-11-03 04:16:10,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:16:10,636 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-11-03 04:16:10,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 04:16:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-11-03 04:16:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:16:10,638 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:16:10,638 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:16:10,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 04:16:10,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:10,849 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 04:16:10,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:16:10,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1994829360, now seen corresponding path program 1 times [2021-11-03 04:16:10,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:16:10,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538405759] [2021-11-03 04:16:10,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:16:10,853 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:16:10,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:16:10,854 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:16:10,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb129aed-d00d-4e62-9a2f-62aa87211262/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:20:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:31,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 04:20:31,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:31,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 83 [2021-11-03 04:20:31,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:20:31,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-11-03 04:20:31,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 241 [2021-11-03 04:20:31,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 45 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 74 [2021-11-03 04:20:31,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:20:31,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-11-03 04:20:31,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:20:31,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 707 [2021-11-03 04:20:31,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 707 treesize of output 676 [2021-11-03 04:20:31,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 153 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 127 [2021-11-03 04:20:32,276 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 04:20:32,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:45,320 WARN L207 SmtUtils]: Spent 12.80 s on a formula simplification. DAG size of input: 207 DAG size of output: 10 [2021-11-03 04:20:45,320 INFO L354 Elim1Store]: treesize reduction 1526, result has 0.7 percent of original size [2021-11-03 04:20:45,321 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 8 case distinctions, treesize of input 420 treesize of output 332 [2021-11-03 04:20:46,989 INFO L354 Elim1Store]: treesize reduction 1526, result has 0.7 percent of original size [2021-11-03 04:20:46,990 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 8 case distinctions, treesize of input 332 treesize of output 244 [2021-11-03 04:20:48,034 INFO L354 Elim1Store]: treesize reduction 1602, result has 0.6 percent of original size [2021-11-03 04:20:48,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 244 treesize of output 151 [2021-11-03 04:20:48,043 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 147 treesize of output 143 [2021-11-03 04:20:48,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:20:48,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 436 [2021-11-03 04:20:48,071 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 436 treesize of output 418 [2021-11-03 04:20:48,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 86147438 treesize of output 86131050