./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/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 1c506089032d4cdff4e7555a7f0fed6846d5bd185846ae9cd372b1dcc3fd0c8a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:45:25,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:45:25,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:45:25,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:45:25,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:45:25,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:45:25,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:45:25,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:45:25,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:45:25,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:45:25,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:45:25,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:45:25,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:45:25,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:45:25,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:45:25,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:45:25,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:45:25,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:45:25,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:45:25,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:45:25,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:45:25,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:45:25,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:45:25,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:45:25,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:45:25,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:45:25,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:45:25,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:45:25,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:45:25,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:45:25,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:45:25,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:45:25,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:45:25,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:45:25,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:45:25,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:45:25,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:45:25,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:45:25,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:45:25,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:45:25,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:45:25,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:45:25,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:45:25,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:45:25,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:45:25,854 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:45:25,854 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:45:25,855 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:45:25,855 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:45:25,855 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:45:25,856 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:45:25,856 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:45:25,856 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:45:25,857 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:45:25,857 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:45:25,857 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:45:25,858 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:45:25,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:45:25,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:45:25,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:45:25,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:45:25,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:45:25,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:45:25,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:45:25,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:45:25,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:45:25,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:45:25,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:45:25,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:45:25,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:45:25,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:45:25,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:45:25,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:45:25,864 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:45:25,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:45:25,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:45:25,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:45:25,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:45:25,865 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c506089032d4cdff4e7555a7f0fed6846d5bd185846ae9cd372b1dcc3fd0c8a [2021-11-03 03:45:26,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:45:26,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:45:26,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:45:26,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:45:26,250 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:45:26,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2021-11-03 03:45:26,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data/8e138ecb6/345bfa086ce14269ade828a71021a631/FLAG58e2a96f4 [2021-11-03 03:45:27,362 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:45:27,365 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2021-11-03 03:45:27,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data/8e138ecb6/345bfa086ce14269ade828a71021a631/FLAG58e2a96f4 [2021-11-03 03:45:27,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data/8e138ecb6/345bfa086ce14269ade828a71021a631 [2021-11-03 03:45:27,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:45:27,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:45:27,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:45:27,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:45:27,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:45:27,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:27" (1/1) ... [2021-11-03 03:45:27,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c194c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:27, skipping insertion in model container [2021-11-03 03:45:27,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:27" (1/1) ... [2021-11-03 03:45:27,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:45:27,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:45:28,192 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2021-11-03 03:45:28,200 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2021-11-03 03:45:28,228 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:45:28,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:45:29,346 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:45:29,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,467 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,487 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,487 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:29,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:45:29,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:45:29,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:45:29,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:45:29,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:45:29,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:45:29,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:45:29,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:45:29,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:45:29,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:45:30,110 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:45:30,117 INFO L168 Benchmark]: Toolchain (without parser) took 2413.64 ms. Allocated memory is still 115.3 MB. Free memory was 65.4 MB in the beginning and 59.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:45:30,118 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 115.3 MB. Free memory was 89.9 MB in the beginning and 89.8 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:45:30,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2407.78 ms. Allocated memory is still 115.3 MB. Free memory was 65.2 MB in the beginning and 59.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:45:30,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 115.3 MB. Free memory was 89.9 MB in the beginning and 89.8 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2407.78 ms. Allocated memory is still 115.3 MB. Free memory was 65.2 MB in the beginning and 59.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.4 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/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 1c506089032d4cdff4e7555a7f0fed6846d5bd185846ae9cd372b1dcc3fd0c8a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:45:32,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:45:32,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:45:33,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:45:33,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:45:33,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:45:33,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:45:33,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:45:33,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:45:33,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:45:33,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:45:33,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:45:33,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:45:33,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:45:33,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:45:33,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:45:33,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:45:33,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:45:33,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:45:33,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:45:33,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:45:33,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:45:33,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:45:33,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:45:33,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:45:33,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:45:33,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:45:33,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:45:33,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:45:33,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:45:33,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:45:33,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:45:33,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:45:33,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:45:33,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:45:33,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:45:33,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:45:33,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:45:33,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:45:33,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:45:33,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:45:33,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:45:33,216 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:45:33,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:45:33,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:45:33,218 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:45:33,219 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:45:33,219 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:45:33,219 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:45:33,219 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:45:33,220 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:45:33,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:45:33,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:45:33,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:45:33,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:45:33,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:45:33,224 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:45:33,224 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:45:33,224 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:45:33,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:45:33,225 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:45:33,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:45:33,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:45:33,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:45:33,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:45:33,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:45:33,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:45:33,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:45:33,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:45:33,228 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:45:33,228 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:45:33,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:45:33,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:45:33,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:45:33,229 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c506089032d4cdff4e7555a7f0fed6846d5bd185846ae9cd372b1dcc3fd0c8a [2021-11-03 03:45:33,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:45:33,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:45:33,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:45:33,790 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:45:33,791 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:45:33,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2021-11-03 03:45:33,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data/d3f0b5e35/74f9e287b49b4e21807bc2b58543c0a7/FLAGa59d454cc [2021-11-03 03:45:34,885 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:45:34,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2021-11-03 03:45:34,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data/d3f0b5e35/74f9e287b49b4e21807bc2b58543c0a7/FLAGa59d454cc [2021-11-03 03:45:35,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/data/d3f0b5e35/74f9e287b49b4e21807bc2b58543c0a7 [2021-11-03 03:45:35,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:45:35,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:45:35,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:45:35,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:45:35,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:45:35,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:35" (1/1) ... [2021-11-03 03:45:35,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e7700b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:35, skipping insertion in model container [2021-11-03 03:45:35,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:35" (1/1) ... [2021-11-03 03:45:35,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:45:35,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:45:35,834 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2021-11-03 03:45:35,847 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2021-11-03 03:45:35,880 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:45:35,887 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:45:36,936 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:45:37,041 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:45:37,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:45:37,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:45:37,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:45:37,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:45:37,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:45:37,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:45:37,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:45:37,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:45:37,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:45:37,799 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:37,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:45:37,919 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:45:37,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:45:37,971 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2021-11-03 03:45:37,972 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2021-11-03 03:45:37,973 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:45:37,974 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:45:38,011 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:45:38,031 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,031 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,058 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:45:38,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:45:38,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:45:38,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:45:38,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:45:38,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:45:38,149 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:45:38,150 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:45:38,151 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:45:38,152 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:45:38,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:45:38,286 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:45:38,313 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2021-11-03 03:45:38,313 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_32bff504-1bd2-4191-8784-ffdf50f7d0d1/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2021-11-03 03:45:38,315 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:45:38,316 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:45:38,372 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:45:38,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:45:38,458 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:45:38,459 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:45:38,460 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:45:38,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:45:38,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:45:38,462 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:45:38,463 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:45:38,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:45:38,464 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:45:38,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:45:38,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:45:38,899 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:45:38,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38 WrapperNode [2021-11-03 03:45:38,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:45:38,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:45:38,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:45:38,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:45:38,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:45:39,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:45:39,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:45:39,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:45:39,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:45:39,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:45:39,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:45:39,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:45:39,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (1/1) ... [2021-11-03 03:45:39,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:45:39,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:45:39,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:45:39,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:45:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:45:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:45:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:45:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:45:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:45:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:45:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:45:39,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:45:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:45:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:45:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 03:45:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:45:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:45:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:45:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:45:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:45:39,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:46:01,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:46:01,641 INFO L299 CfgBuilder]: Removed 512 assume(true) statements. [2021-11-03 03:46:01,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:01 BoogieIcfgContainer [2021-11-03 03:46:01,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:46:01,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:46:01,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:46:01,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:46:01,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:45:35" (1/3) ... [2021-11-03 03:46:01,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f13b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:01, skipping insertion in model container [2021-11-03 03:46:01,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:38" (2/3) ... [2021-11-03 03:46:01,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f13b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:46:01, skipping insertion in model container [2021-11-03 03:46:01,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:46:01" (3/3) ... [2021-11-03 03:46:01,666 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_push_back_harness.i [2021-11-03 03:46:01,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:46:01,673 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-11-03 03:46:01,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:46:01,752 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:46:01,752 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-11-03 03:46:01,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 601 states, 577 states have (on average 1.4038128249566724) internal successors, (810), 600 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:01,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 03:46:01,801 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:01,802 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:01,803 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:46:01,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:01,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1173181215, now seen corresponding path program 1 times [2021-11-03 03:46:01,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:46:01,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598850469] [2021-11-03 03:46:01,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:01,854 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:46:01,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:46:01,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:46:01,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:46:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:06,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:46:06,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:06,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:06,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:06,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:06,604 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:46:06,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598850469] [2021-11-03 03:46:06,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598850469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:46:06,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:46:06,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:46:06,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544214919] [2021-11-03 03:46:06,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:46:06,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:46:06,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:46:06,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:46:06,633 INFO L87 Difference]: Start difference. First operand has 601 states, 577 states have (on average 1.4038128249566724) internal successors, (810), 600 states have internal predecessors, (810), 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 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:06,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:46:06,714 INFO L93 Difference]: Finished difference Result 1198 states and 1615 transitions. [2021-11-03 03:46:06,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:46:06,716 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2021-11-03 03:46:06,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:46:06,738 INFO L225 Difference]: With dead ends: 1198 [2021-11-03 03:46:06,738 INFO L226 Difference]: Without dead ends: 596 [2021-11-03 03:46:06,744 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:46:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-11-03 03:46:06,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2021-11-03 03:46:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 573 states have (on average 1.3089005235602094) internal successors, (750), 595 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 750 transitions. [2021-11-03 03:46:06,829 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 750 transitions. Word has length 53 [2021-11-03 03:46:06,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:46:06,830 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 750 transitions. [2021-11-03 03:46:06,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 750 transitions. [2021-11-03 03:46:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 03:46:06,833 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:06,833 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:06,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:46:07,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:46:07,050 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:46:07,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:07,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1286691189, now seen corresponding path program 1 times [2021-11-03 03:46:07,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:46:07,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092262255] [2021-11-03 03:46:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:07,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:46:07,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:46:07,058 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:46:07,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:46:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:11,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:46:11,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:11,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:11,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:11,830 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:46:11,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092262255] [2021-11-03 03:46:11,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092262255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:46:11,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:46:11,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 03:46:11,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241888077] [2021-11-03 03:46:11,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:46:11,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:46:11,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:46:11,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:46:11,834 INFO L87 Difference]: Start difference. First operand 596 states and 750 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:46:11,905 INFO L93 Difference]: Finished difference Result 1179 states and 1485 transitions. [2021-11-03 03:46:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:46:11,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2021-11-03 03:46:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:46:11,912 INFO L225 Difference]: With dead ends: 1179 [2021-11-03 03:46:11,912 INFO L226 Difference]: Without dead ends: 597 [2021-11-03 03:46:11,916 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:46:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-11-03 03:46:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2021-11-03 03:46:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 574 states have (on average 1.3083623693379791) internal successors, (751), 596 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:11,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 751 transitions. [2021-11-03 03:46:11,948 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 751 transitions. Word has length 53 [2021-11-03 03:46:11,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:46:11,948 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 751 transitions. [2021-11-03 03:46:11,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:46:11,949 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 751 transitions. [2021-11-03 03:46:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 03:46:11,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:11,951 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:46:12,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:46:12,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:46:12,152 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:46:12,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1069114061, now seen corresponding path program 1 times [2021-11-03 03:46:12,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:46:12,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310485728] [2021-11-03 03:46:12,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:12,157 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:46:12,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:46:12,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:46:12,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:46:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:16,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 03:46:16,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:17,217 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:46:17,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 59 [2021-11-03 03:46:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:17,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:18,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:46:18,660 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:46:18,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310485728] [2021-11-03 03:46:18,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310485728] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:46:18,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:46:18,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 03:46:18,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660185602] [2021-11-03 03:46:18,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:46:18,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:46:18,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:46:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:46:18,664 INFO L87 Difference]: Start difference. First operand 597 states and 751 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:50:50,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:50:50,926 INFO L93 Difference]: Finished difference Result 1863 states and 2344 transitions. [2021-11-03 03:50:50,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:50:50,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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 53 [2021-11-03 03:50:50,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:50:50,936 INFO L225 Difference]: With dead ends: 1863 [2021-11-03 03:50:50,936 INFO L226 Difference]: Without dead ends: 1281 [2021-11-03 03:50:50,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-03 03:50:50,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2021-11-03 03:50:50,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 593. [2021-11-03 03:50:50,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 570 states have (on average 1.3087719298245615) internal successors, (746), 592 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:50:51,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 746 transitions. [2021-11-03 03:50:51,001 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 746 transitions. Word has length 53 [2021-11-03 03:50:51,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:50:51,002 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 746 transitions. [2021-11-03 03:50:51,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:50:51,002 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 746 transitions. [2021-11-03 03:50:51,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 03:50:51,004 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:50:51,004 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:50:51,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:50:51,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:50:51,211 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:50:51,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:50:51,212 INFO L85 PathProgramCache]: Analyzing trace with hash 110706595, now seen corresponding path program 1 times [2021-11-03 03:50:51,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:50:51,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398336786] [2021-11-03 03:50:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:50:51,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:50:51,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:50:51,216 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:50:51,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:50:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:50:55,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:50:55,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:50:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:50:55,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:50:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:50:55,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:50:55,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398336786] [2021-11-03 03:50:55,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398336786] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:50:55,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:50:55,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:50:55,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258840134] [2021-11-03 03:50:55,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:50:55,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:50:55,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:50:55,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:50:55,650 INFO L87 Difference]: Start difference. First operand 593 states and 746 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:50:57,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:50:57,871 INFO L93 Difference]: Finished difference Result 1158 states and 1457 transitions. [2021-11-03 03:50:57,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:50:57,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2021-11-03 03:50:57,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:50:57,877 INFO L225 Difference]: With dead ends: 1158 [2021-11-03 03:50:57,877 INFO L226 Difference]: Without dead ends: 593 [2021-11-03 03:50:57,879 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 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 03:50:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-11-03 03:50:57,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2021-11-03 03:50:57,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 570 states have (on average 1.3017543859649123) internal successors, (742), 592 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:50:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 742 transitions. [2021-11-03 03:50:57,901 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 742 transitions. Word has length 56 [2021-11-03 03:50:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:50:57,902 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 742 transitions. [2021-11-03 03:50:57,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:50:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 742 transitions. [2021-11-03 03:50:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-03 03:50:57,904 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:50:57,904 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:50:57,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 03:50:58,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:50:58,117 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:50:58,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:50:58,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1672266673, now seen corresponding path program 1 times [2021-11-03 03:50:58,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:50:58,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163261057] [2021-11-03 03:50:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:50:58,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:50:58,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:50:58,124 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:50:58,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:51:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:51:02,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 03:51:02,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:51:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:03,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:51:06,240 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:51:06,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-03 03:51:06,280 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-03 03:51:06,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-03 03:51:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:06,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:51:06,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163261057] [2021-11-03 03:51:06,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163261057] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:51:06,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:51:06,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2021-11-03 03:51:06,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042906569] [2021-11-03 03:51:06,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 03:51:06,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:51:06,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 03:51:06,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-03 03:51:06,496 INFO L87 Difference]: Start difference. First operand 593 states and 742 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 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 03:51:48,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:51:48,547 INFO L93 Difference]: Finished difference Result 1843 states and 2322 transitions. [2021-11-03 03:51:48,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 03:51:48,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 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) Word has length 80 [2021-11-03 03:51:48,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:51:48,557 INFO L225 Difference]: With dead ends: 1843 [2021-11-03 03:51:48,558 INFO L226 Difference]: Without dead ends: 1276 [2021-11-03 03:51:48,560 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=192, Invalid=408, Unknown=0, NotChecked=0, Total=600 [2021-11-03 03:51:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2021-11-03 03:51:48,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1102. [2021-11-03 03:51:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1079 states have (on average 1.3215940685820204) internal successors, (1426), 1101 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:48,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1426 transitions. [2021-11-03 03:51:48,627 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1426 transitions. Word has length 80 [2021-11-03 03:51:48,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:51:48,627 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1426 transitions. [2021-11-03 03:51:48,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 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 03:51:48,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1426 transitions. [2021-11-03 03:51:48,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-03 03:51:48,630 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:51:48,630 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:51:48,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:51:48,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:51:48,854 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:51:48,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:51:48,854 INFO L85 PathProgramCache]: Analyzing trace with hash -582576491, now seen corresponding path program 1 times [2021-11-03 03:51:48,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:51:48,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101040344] [2021-11-03 03:51:48,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:51:48,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:51:48,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:51:48,861 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:51:48,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:51:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:51:53,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 03:51:53,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:51:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:54,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:51:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:54,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:51:54,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101040344] [2021-11-03 03:51:54,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101040344] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:51:54,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:51:54,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 03:51:54,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594133888] [2021-11-03 03:51:54,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:51:54,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:51:54,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:51:54,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:51:54,545 INFO L87 Difference]: Start difference. First operand 1102 states and 1426 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:55,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:51:55,452 INFO L93 Difference]: Finished difference Result 2666 states and 3452 transitions. [2021-11-03 03:51:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 03:51:55,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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 82 [2021-11-03 03:51:55,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:51:55,462 INFO L225 Difference]: With dead ends: 2666 [2021-11-03 03:51:55,462 INFO L226 Difference]: Without dead ends: 1596 [2021-11-03 03:51:55,464 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:51:55,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2021-11-03 03:51:55,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1102. [2021-11-03 03:51:55,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1079 states have (on average 1.3188137164040779) internal successors, (1423), 1101 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1423 transitions. [2021-11-03 03:51:55,515 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1423 transitions. Word has length 82 [2021-11-03 03:51:55,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:51:55,515 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1423 transitions. [2021-11-03 03:51:55,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:55,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1423 transitions. [2021-11-03 03:51:55,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-03 03:51:55,517 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:51:55,517 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:51:55,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:51:55,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:51:55,732 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:51:55,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:51:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1230704304, now seen corresponding path program 1 times [2021-11-03 03:51:55,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:51:55,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072638655] [2021-11-03 03:51:55,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:51:55,737 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:51:55,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:51:55,740 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:51:55,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:52:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:52:00,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:52:00,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:52:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:52:01,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:52:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:52:01,443 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:52:01,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072638655] [2021-11-03 03:52:01,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072638655] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:52:01,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:52:01,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 03:52:01,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517617188] [2021-11-03 03:52:01,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:52:01,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:52:01,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:52:01,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:52:01,445 INFO L87 Difference]: Start difference. First operand 1102 states and 1423 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 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 03:52:02,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:52:02,163 INFO L93 Difference]: Finished difference Result 2587 states and 3353 transitions. [2021-11-03 03:52:02,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 03:52:02,164 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 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) Word has length 85 [2021-11-03 03:52:02,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:52:02,177 INFO L225 Difference]: With dead ends: 2587 [2021-11-03 03:52:02,177 INFO L226 Difference]: Without dead ends: 1596 [2021-11-03 03:52:02,180 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-11-03 03:52:02,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2021-11-03 03:52:02,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1102. [2021-11-03 03:52:02,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1079 states have (on average 1.3169601482854494) internal successors, (1421), 1101 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:02,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1421 transitions. [2021-11-03 03:52:02,258 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1421 transitions. Word has length 85 [2021-11-03 03:52:02,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:52:02,259 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1421 transitions. [2021-11-03 03:52:02,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 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 03:52:02,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1421 transitions. [2021-11-03 03:52:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-03 03:52:02,260 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:52:02,260 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:52:02,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:52:02,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:52:02,470 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:52:02,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:52:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash -209635950, now seen corresponding path program 1 times [2021-11-03 03:52:02,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:52:02,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074632403] [2021-11-03 03:52:02,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:52:02,474 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:52:02,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:52:02,475 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:52:02,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:52:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:52:07,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1820 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:52:07,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:52:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:52:07,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:52:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:52:08,462 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:52:08,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074632403] [2021-11-03 03:52:08,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074632403] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:52:08,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:52:08,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 03:52:08,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284908795] [2021-11-03 03:52:08,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:52:08,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:52:08,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:52:08,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:52:08,465 INFO L87 Difference]: Start difference. First operand 1102 states and 1421 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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 03:52:11,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:52:11,154 INFO L93 Difference]: Finished difference Result 2222 states and 2879 transitions. [2021-11-03 03:52:11,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:52:11,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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) Word has length 85 [2021-11-03 03:52:11,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:52:11,161 INFO L225 Difference]: With dead ends: 2222 [2021-11-03 03:52:11,161 INFO L226 Difference]: Without dead ends: 1273 [2021-11-03 03:52:11,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:52:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2021-11-03 03:52:11,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1102. [2021-11-03 03:52:11,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1079 states have (on average 1.3076923076923077) internal successors, (1411), 1101 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:11,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1411 transitions. [2021-11-03 03:52:11,230 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1411 transitions. Word has length 85 [2021-11-03 03:52:11,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:52:11,231 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1411 transitions. [2021-11-03 03:52:11,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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 03:52:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1411 transitions. [2021-11-03 03:52:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-03 03:52:11,232 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:52:11,233 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:52:11,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 03:52:11,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:52:11,446 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:52:11,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:52:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash -23158820, now seen corresponding path program 1 times [2021-11-03 03:52:11,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:52:11,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011165773] [2021-11-03 03:52:11,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:52:11,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:52:11,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:52:11,452 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:52:11,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 03:52:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:52:16,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1935 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:52:16,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:52:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:52:16,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:52:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:52:17,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:52:17,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011165773] [2021-11-03 03:52:17,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011165773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:52:17,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:52:17,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:52:17,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051732578] [2021-11-03 03:52:17,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:52:17,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:52:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:52:17,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:52:17,083 INFO L87 Difference]: Start difference. First operand 1102 states and 1411 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:19,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:52:19,346 INFO L93 Difference]: Finished difference Result 2313 states and 2987 transitions. [2021-11-03 03:52:19,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:52:19,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-03 03:52:19,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:52:19,354 INFO L225 Difference]: With dead ends: 2313 [2021-11-03 03:52:19,354 INFO L226 Difference]: Without dead ends: 1283 [2021-11-03 03:52:19,356 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 199 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 03:52:19,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2021-11-03 03:52:19,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1148. [2021-11-03 03:52:19,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1125 states have (on average 1.2764444444444445) internal successors, (1436), 1147 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1436 transitions. [2021-11-03 03:52:19,424 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1436 transitions. Word has length 101 [2021-11-03 03:52:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:52:19,425 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 1436 transitions. [2021-11-03 03:52:19,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:19,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1436 transitions. [2021-11-03 03:52:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-03 03:52:19,426 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:52:19,427 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:52:19,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:52:19,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:52:19,642 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-03 03:52:19,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:52:19,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1665784922, now seen corresponding path program 1 times [2021-11-03 03:52:19,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:52:19,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632433302] [2021-11-03 03:52:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:52:19,645 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:52:19,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:52:19,648 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:52:19,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bff504-1bd2-4191-8784-ffdf50f7d0d1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 03:57:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:43,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-03 03:57:43,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:43,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 03:57:44,171 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-03 03:57:44,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 32 [2021-11-03 03:57:44,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-03 03:57:44,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:44,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-11-03 03:57:45,263 INFO L354 Elim1Store]: treesize reduction 145, result has 23.7 percent of original size [2021-11-03 03:57:45,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 51 treesize of output 77 [2021-11-03 03:57:46,036 INFO L354 Elim1Store]: treesize reduction 994, result has 0.1 percent of original size [2021-11-03 03:57:46,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 7 case distinctions, treesize of input 140 treesize of output 33 [2021-11-03 03:57:47,556 INFO L354 Elim1Store]: treesize reduction 99, result has 26.1 percent of original size [2021-11-03 03:57:47,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 66 treesize of output 85 [2021-11-03 03:57:49,831 INFO L354 Elim1Store]: treesize reduction 86, result has 43.8 percent of original size [2021-11-03 03:57:49,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 115 [2021-11-03 03:57:59,379 INFO L354 Elim1Store]: treesize reduction 262, result has 30.9 percent of original size [2021-11-03 03:57:59,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 128 treesize of output 222