./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_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_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/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_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/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_0565590c-12c2-45ca-8610-10c408784060/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 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:13:29,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:13:29,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:13:29,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:13:29,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:13:29,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:13:29,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:13:29,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:13:29,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:13:29,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:13:29,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:13:29,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:13:29,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:13:29,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:13:29,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:13:29,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:13:29,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:13:29,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:13:29,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:13:29,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:13:29,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:13:29,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:13:29,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:13:29,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:13:29,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:13:29,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:13:29,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:13:29,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:13:29,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:13:29,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:13:29,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:13:29,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:13:29,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:13:29,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:13:29,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:13:29,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:13:29,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:13:29,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:13:29,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:13:29,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:13:29,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:13:29,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:13:29,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:13:29,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:13:29,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:13:29,673 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:13:29,674 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:13:29,674 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:13:29,674 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:13:29,674 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:13:29,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:13:29,678 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:13:29,679 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:13:29,679 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:13:29,680 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:13:29,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:13:29,680 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:13:29,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:13:29,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:13:29,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:13:29,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:13:29,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:13:29,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:13:29,682 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:13:29,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:13:29,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:13:29,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:13:29,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:13:29,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:13:29,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:29,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:13:29,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:13:29,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:13:29,687 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:13:29,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:13:29,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:13:29,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:13:29,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:13:29,688 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_0565590c-12c2-45ca-8610-10c408784060/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 [2021-11-03 04:13:29,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:13:29,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:13:29,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:13:29,990 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:13:29,991 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:13:29,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-03 04:13:30,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data/a151d4a5e/c1f5c42622c64214ab9080bd22c64857/FLAG132ee3e52 [2021-11-03 04:13:30,913 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:13:30,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-03 04:13:30,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data/a151d4a5e/c1f5c42622c64214ab9080bd22c64857/FLAG132ee3e52 [2021-11-03 04:13:31,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data/a151d4a5e/c1f5c42622c64214ab9080bd22c64857 [2021-11-03 04:13:31,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:13:31,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:13:31,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:31,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:13:31,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:13:31,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:31" (1/1) ... [2021-11-03 04:13:31,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cfb2820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:31, skipping insertion in model container [2021-11-03 04:13:31,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:31" (1/1) ... [2021-11-03 04:13:31,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:13:31,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:31,869 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_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-03 04:13:31,875 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_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-03 04:13:31,896 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:31,902 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:32,695 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:32,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,784 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:32,784 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:33,164 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:33,165 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:33,166 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:33,167 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:33,169 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:33,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:33,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:33,171 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:33,172 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:33,172 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:33,338 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:13:33,343 INFO L168 Benchmark]: Toolchain (without parser) took 1920.07 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 49.7 MB in the end (delta: 29.1 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:13:33,344 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory is still 79.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:13:33,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1917.54 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 49.7 MB in the end (delta: 29.1 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:13:33,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory is still 79.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1917.54 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 49.7 MB in the end (delta: 29.1 MB). Peak memory consumption was 28.0 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_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/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_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/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_0565590c-12c2-45ca-8610-10c408784060/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 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:13:35,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:13:35,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:13:35,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:13:35,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:13:35,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:13:35,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:13:35,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:13:35,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:13:35,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:13:35,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:13:35,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:13:35,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:13:35,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:13:35,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:13:35,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:13:35,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:13:35,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:13:35,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:13:35,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:13:35,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:13:35,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:13:35,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:13:35,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:13:35,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:13:35,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:13:35,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:13:35,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:13:35,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:13:35,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:13:35,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:13:35,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:13:35,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:13:35,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:13:35,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:13:35,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:13:35,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:13:35,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:13:35,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:13:35,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:13:35,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:13:35,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:13:35,831 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:13:35,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:13:35,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:13:35,833 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:13:35,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:13:35,834 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:13:35,834 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:13:35,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:13:35,834 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:13:35,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:13:35,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:13:35,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:13:35,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:13:35,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:13:35,838 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:13:35,838 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:13:35,839 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:13:35,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:13:35,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:13:35,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:13:35,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:13:35,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:13:35,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:13:35,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:35,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:13:35,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:13:35,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:13:35,842 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:13:35,842 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:13:35,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:13:35,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:13:35,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:13:35,843 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_0565590c-12c2-45ca-8610-10c408784060/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b920ac3045decc1a5a84e4c4a6d200f349784425219a23e0b9ddb547b7159b4 [2021-11-03 04:13:36,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:13:36,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:13:36,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:13:36,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:13:36,230 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:13:36,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-03 04:13:36,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data/937afa545/3b2f978601f546129085af879f797e6c/FLAG718508d40 [2021-11-03 04:13:37,178 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:13:37,180 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i [2021-11-03 04:13:37,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data/937afa545/3b2f978601f546129085af879f797e6c/FLAG718508d40 [2021-11-03 04:13:37,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/data/937afa545/3b2f978601f546129085af879f797e6c [2021-11-03 04:13:37,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:13:37,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:13:37,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:37,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:13:37,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:13:37,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:37" (1/1) ... [2021-11-03 04:13:37,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b6b1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:37, skipping insertion in model container [2021-11-03 04:13:37,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:13:37" (1/1) ... [2021-11-03 04:13:37,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:13:37,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:38,102 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_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-03 04:13:38,108 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_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-03 04:13:38,131 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:38,153 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:38,956 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:39,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,036 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:39,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:39,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:39,443 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:39,444 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:39,445 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:39,445 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:39,446 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:39,447 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:39,453 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:39,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:39,712 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:13:39,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:13:39,784 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_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-03 04:13:39,784 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_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-03 04:13:39,787 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:39,789 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:39,866 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:39,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:39,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:39,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:39,986 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:39,987 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:39,989 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:39,993 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:39,993 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:39,994 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:39,995 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:39,995 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:40,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:40,141 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:13:40,166 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_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4496,4509] [2021-11-03 04:13:40,167 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_0565590c-12c2-45ca-8610-10c408784060/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness.i[4556,4569] [2021-11-03 04:13:40,168 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:13:40,169 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:13:40,207 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:13:40,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,234 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,286 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:13:40,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:13:40,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:13:40,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:13:40,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:13:40,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:13:40,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:13:40,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:13:40,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:13:40,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:13:40,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:13:40,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:13:40,691 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:13:40,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40 WrapperNode [2021-11-03 04:13:40,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:13:40,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:13:40,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:13:40,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:13:40,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:40,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:40,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:13:40,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:13:40,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:13:40,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:13:40,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:40,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:40,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:40,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:41,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:41,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:41,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:41,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:13:41,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:13:41,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:13:41,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:13:41,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (1/1) ... [2021-11-03 04:13:41,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:13:41,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:13:41,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:13:41,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:13:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:13:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:13:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:13:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:13:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:13:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:13:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:13:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:13:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:13:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:13:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:13:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:13:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:13:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:13:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:13:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:13:57,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:13:57,945 INFO L299 CfgBuilder]: Removed 280 assume(true) statements. [2021-11-03 04:13:57,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:13:57 BoogieIcfgContainer [2021-11-03 04:13:57,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:13:57,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:13:57,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:13:57,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:13:57,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:13:37" (1/3) ... [2021-11-03 04:13:57,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d1353d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:13:57, skipping insertion in model container [2021-11-03 04:13:57,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:13:40" (2/3) ... [2021-11-03 04:13:57,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d1353d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:13:57, skipping insertion in model container [2021-11-03 04:13:57,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:13:57" (3/3) ... [2021-11-03 04:13:57,957 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness.i [2021-11-03 04:13:57,962 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:13:57,963 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-03 04:13:58,014 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:13:58,019 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:13:58,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-03 04:13:58,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 352 states, 334 states have (on average 1.4311377245508983) internal successors, (478), 351 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:58,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 04:13:58,051 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:58,051 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] [2021-11-03 04:13:58,052 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:13:58,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:58,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1155465246, now seen corresponding path program 1 times [2021-11-03 04:13:58,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:58,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321991654] [2021-11-03 04:13:58,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:58,082 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:58,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:58,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:58,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:14:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:02,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:14:02,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:02,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:02,455 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:02,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321991654] [2021-11-03 04:14:02,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321991654] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:02,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:02,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:14:02,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812065796] [2021-11-03 04:14:02,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:14:02,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:02,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:14:02,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:14:02,480 INFO L87 Difference]: Start difference. First operand has 352 states, 334 states have (on average 1.4311377245508983) internal successors, (478), 351 states have internal predecessors, (478), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:02,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:02,527 INFO L93 Difference]: Finished difference Result 698 states and 949 transitions. [2021-11-03 04:14:02,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:14:02,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-03 04:14:02,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:02,541 INFO L225 Difference]: With dead ends: 698 [2021-11-03 04:14:02,541 INFO L226 Difference]: Without dead ends: 345 [2021-11-03 04:14:02,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:14:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-11-03 04:14:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2021-11-03 04:14:02,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 328 states have (on average 1.3170731707317074) internal successors, (432), 344 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:02,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 432 transitions. [2021-11-03 04:14:02,601 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 432 transitions. Word has length 44 [2021-11-03 04:14:02,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:02,602 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 432 transitions. [2021-11-03 04:14:02,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:02,602 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 432 transitions. [2021-11-03 04:14:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 04:14:02,605 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:02,605 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] [2021-11-03 04:14:02,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:02,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:02,819 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:14:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:02,819 INFO L85 PathProgramCache]: Analyzing trace with hash -892659362, now seen corresponding path program 1 times [2021-11-03 04:14:02,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:02,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97899938] [2021-11-03 04:14:02,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:02,822 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:02,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:02,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:02,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:14:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:06,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 04:14:06,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:07,929 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:14:07,930 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 04:14:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:08,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:09,632 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:09,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97899938] [2021-11-03 04:14:09,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97899938] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:09,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:09,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-03 04:14:09,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433617354] [2021-11-03 04:14:09,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 04:14:09,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:09,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 04:14:09,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:14:09,636 INFO L87 Difference]: Start difference. First operand 345 states and 432 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:52,859 INFO L93 Difference]: Finished difference Result 672 states and 844 transitions. [2021-11-03 04:14:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:14:52,862 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-03 04:14:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:52,864 INFO L225 Difference]: With dead ends: 672 [2021-11-03 04:14:52,865 INFO L226 Difference]: Without dead ends: 343 [2021-11-03 04:14:52,867 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-11-03 04:14:52,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-11-03 04:14:52,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2021-11-03 04:14:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 326 states have (on average 1.3159509202453987) internal successors, (429), 342 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 429 transitions. [2021-11-03 04:14:52,890 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 429 transitions. Word has length 44 [2021-11-03 04:14:52,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:52,891 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 429 transitions. [2021-11-03 04:14:52,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:52,891 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 429 transitions. [2021-11-03 04:14:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 04:14:52,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:52,894 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] [2021-11-03 04:14:52,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:53,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:53,119 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:14:53,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:53,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2027121994, now seen corresponding path program 1 times [2021-11-03 04:14:53,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:53,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351218011] [2021-11-03 04:14:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:53,122 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:53,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:53,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:53,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:14:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:14:56,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:14:56,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:14:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:57,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:14:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:14:57,493 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:14:57,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351218011] [2021-11-03 04:14:57,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351218011] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:14:57,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:14:57,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:14:57,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565511956] [2021-11-03 04:14:57,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:14:57,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:14:57,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:14:57,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:14:57,497 INFO L87 Difference]: Start difference. First operand 343 states and 429 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:57,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:14:57,703 INFO L93 Difference]: Finished difference Result 608 states and 756 transitions. [2021-11-03 04:14:57,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:14:57,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2021-11-03 04:14:57,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:14:57,708 INFO L225 Difference]: With dead ends: 608 [2021-11-03 04:14:57,708 INFO L226 Difference]: Without dead ends: 343 [2021-11-03 04:14:57,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:14:57,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-11-03 04:14:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2021-11-03 04:14:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 326 states have (on average 1.3098159509202454) internal successors, (427), 342 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 427 transitions. [2021-11-03 04:14:57,735 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 427 transitions. Word has length 47 [2021-11-03 04:14:57,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:14:57,735 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 427 transitions. [2021-11-03 04:14:57,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:14:57,736 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 427 transitions. [2021-11-03 04:14:57,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 04:14:57,738 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:14:57,738 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] [2021-11-03 04:14:57,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:14:57,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:14:57,955 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:14:57,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:14:57,955 INFO L85 PathProgramCache]: Analyzing trace with hash -475503111, now seen corresponding path program 1 times [2021-11-03 04:14:57,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:14:57,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952490477] [2021-11-03 04:14:57,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:14:57,958 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:14:57,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:14:57,959 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:14:57,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:15:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:01,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:15:01,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:02,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:02,633 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:02,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952490477] [2021-11-03 04:15:02,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952490477] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:02,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:02,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:15:02,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111506429] [2021-11-03 04:15:02,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:15:02,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:02,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:15:02,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:15:02,636 INFO L87 Difference]: Start difference. First operand 343 states and 427 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:04,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:04,063 INFO L93 Difference]: Finished difference Result 723 states and 886 transitions. [2021-11-03 04:15:04,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:15:04,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-03 04:15:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:04,068 INFO L225 Difference]: With dead ends: 723 [2021-11-03 04:15:04,068 INFO L226 Difference]: Without dead ends: 426 [2021-11-03 04:15:04,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:15:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-11-03 04:15:04,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 343. [2021-11-03 04:15:04,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 326 states have (on average 1.303680981595092) internal successors, (425), 342 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:04,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 425 transitions. [2021-11-03 04:15:04,093 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 425 transitions. Word has length 51 [2021-11-03 04:15:04,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:04,094 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 425 transitions. [2021-11-03 04:15:04,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:04,094 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 425 transitions. [2021-11-03 04:15:04,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 04:15:04,097 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:04,097 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] [2021-11-03 04:15:04,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:04,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:04,306 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:15:04,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:04,307 INFO L85 PathProgramCache]: Analyzing trace with hash 456059925, now seen corresponding path program 1 times [2021-11-03 04:15:04,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:04,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490410458] [2021-11-03 04:15:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:04,311 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:04,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:04,312 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:04,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:15:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:08,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:15:08,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:08,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:08,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:09,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:09,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490410458] [2021-11-03 04:15:09,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490410458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:09,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:09,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:15:09,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18315354] [2021-11-03 04:15:09,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:15:09,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:09,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:15:09,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:15:09,191 INFO L87 Difference]: Start difference. First operand 343 states and 425 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:09,556 INFO L93 Difference]: Finished difference Result 609 states and 751 transitions. [2021-11-03 04:15:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:15:09,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-03 04:15:09,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:09,560 INFO L225 Difference]: With dead ends: 609 [2021-11-03 04:15:09,560 INFO L226 Difference]: Without dead ends: 343 [2021-11-03 04:15:09,561 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:15:09,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-11-03 04:15:09,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2021-11-03 04:15:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 326 states have (on average 1.2975460122699387) internal successors, (423), 342 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:09,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 423 transitions. [2021-11-03 04:15:09,577 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 423 transitions. Word has length 59 [2021-11-03 04:15:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:09,577 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 423 transitions. [2021-11-03 04:15:09,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 423 transitions. [2021-11-03 04:15:09,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 04:15:09,579 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:09,579 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:15:09,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:09,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:09,786 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:15:09,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:09,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1272750214, now seen corresponding path program 1 times [2021-11-03 04:15:09,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:09,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011987959] [2021-11-03 04:15:09,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:09,790 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:09,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:09,791 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:09,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:15:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:14,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:15:14,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:14,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:14,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:14,836 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:14,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011987959] [2021-11-03 04:15:14,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011987959] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:14,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:14,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 04:15:14,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389410703] [2021-11-03 04:15:14,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:15:14,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:14,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:15:14,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:15:14,839 INFO L87 Difference]: Start difference. First operand 343 states and 423 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:16,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:16,238 INFO L93 Difference]: Finished difference Result 625 states and 771 transitions. [2021-11-03 04:15:16,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:15:16,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-03 04:15:16,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:16,242 INFO L225 Difference]: With dead ends: 625 [2021-11-03 04:15:16,242 INFO L226 Difference]: Without dead ends: 343 [2021-11-03 04:15:16,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:15:16,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-11-03 04:15:16,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2021-11-03 04:15:16,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 326 states have (on average 1.2914110429447854) internal successors, (421), 342 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 421 transitions. [2021-11-03 04:15:16,260 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 421 transitions. Word has length 71 [2021-11-03 04:15:16,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:16,260 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 421 transitions. [2021-11-03 04:15:16,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:16,260 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 421 transitions. [2021-11-03 04:15:16,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 04:15:16,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:16,262 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] [2021-11-03 04:15:16,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:16,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:16,479 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:15:16,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1130561514, now seen corresponding path program 1 times [2021-11-03 04:15:16,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:16,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761866858] [2021-11-03 04:15:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:16,482 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:16,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:16,486 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:16,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:15:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:20,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1832 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:15:20,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:21,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:21,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:21,395 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:21,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761866858] [2021-11-03 04:15:21,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761866858] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:21,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:21,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:15:21,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696101467] [2021-11-03 04:15:21,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:15:21,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:15:21,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:15:21,398 INFO L87 Difference]: Start difference. First operand 343 states and 421 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:21,709 INFO L93 Difference]: Finished difference Result 870 states and 1063 transitions. [2021-11-03 04:15:21,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:15:21,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-03 04:15:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:21,714 INFO L225 Difference]: With dead ends: 870 [2021-11-03 04:15:21,714 INFO L226 Difference]: Without dead ends: 603 [2021-11-03 04:15:21,715 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:15:21,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-11-03 04:15:21,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 355. [2021-11-03 04:15:21,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 338 states have (on average 1.2928994082840237) internal successors, (437), 354 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:21,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 437 transitions. [2021-11-03 04:15:21,735 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 437 transitions. Word has length 79 [2021-11-03 04:15:21,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:21,736 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 437 transitions. [2021-11-03 04:15:21,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 437 transitions. [2021-11-03 04:15:21,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 04:15:21,737 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:21,738 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] [2021-11-03 04:15:21,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:21,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:21,950 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:15:21,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:21,951 INFO L85 PathProgramCache]: Analyzing trace with hash 855801900, now seen corresponding path program 1 times [2021-11-03 04:15:21,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:21,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494669602] [2021-11-03 04:15:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:21,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:21,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:21,955 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:21,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:15:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:26,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:15:26,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:27,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:27,816 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:27,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494669602] [2021-11-03 04:15:27,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494669602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:27,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:27,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 04:15:27,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440133670] [2021-11-03 04:15:27,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:15:27,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:27,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:15:27,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:15:27,818 INFO L87 Difference]: Start difference. First operand 355 states and 437 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 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 04:16:09,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:16:09,459 INFO L93 Difference]: Finished difference Result 877 states and 1073 transitions. [2021-11-03 04:16:09,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:16:09,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 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 79 [2021-11-03 04:16:09,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:16:09,466 INFO L225 Difference]: With dead ends: 877 [2021-11-03 04:16:09,466 INFO L226 Difference]: Without dead ends: 595 [2021-11-03 04:16:09,467 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:16:09,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2021-11-03 04:16:09,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 355. [2021-11-03 04:16:09,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 338 states have (on average 1.28698224852071) internal successors, (435), 354 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 435 transitions. [2021-11-03 04:16:09,491 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 435 transitions. Word has length 79 [2021-11-03 04:16:09,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:16:09,491 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 435 transitions. [2021-11-03 04:16:09,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 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 04:16:09,491 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 435 transitions. [2021-11-03 04:16:09,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 04:16:09,492 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:16:09,493 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] [2021-11-03 04:16:09,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 04:16:09,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:09,715 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:16:09,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:16:09,715 INFO L85 PathProgramCache]: Analyzing trace with hash 878434154, now seen corresponding path program 1 times [2021-11-03 04:16:09,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:16:09,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949065739] [2021-11-03 04:16:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:16:09,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:16:09,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:16:09,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:16:09,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:16:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:16:14,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:16:14,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:16:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:15,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:15,896 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:16:15,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949065739] [2021-11-03 04:16:15,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949065739] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:16:15,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:16:15,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-03 04:16:15,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463951131] [2021-11-03 04:16:15,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:16:15,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:16:15,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:16:15,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:16:15,897 INFO L87 Difference]: Start difference. First operand 355 states and 435 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 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 04:17:06,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:06,373 INFO L93 Difference]: Finished difference Result 879 states and 1071 transitions. [2021-11-03 04:17:06,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:17:06,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 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 79 [2021-11-03 04:17:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:06,381 INFO L225 Difference]: With dead ends: 879 [2021-11-03 04:17:06,381 INFO L226 Difference]: Without dead ends: 597 [2021-11-03 04:17:06,382 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:17:06,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-11-03 04:17:06,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 359. [2021-11-03 04:17:06,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 342 states have (on average 1.2777777777777777) internal successors, (437), 358 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:06,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 437 transitions. [2021-11-03 04:17:06,407 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 437 transitions. Word has length 79 [2021-11-03 04:17:06,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:06,408 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 437 transitions. [2021-11-03 04:17:06,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 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 04:17:06,408 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 437 transitions. [2021-11-03 04:17:06,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 04:17:06,409 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:06,409 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] [2021-11-03 04:17:06,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:17:06,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:06,618 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:17:06,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:06,619 INFO L85 PathProgramCache]: Analyzing trace with hash 368961064, now seen corresponding path program 1 times [2021-11-03 04:17:06,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:06,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243495242] [2021-11-03 04:17:06,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:06,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:06,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:06,623 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:06,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:17:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:11,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:17:11,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:17:12,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:17:12,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:17:12,552 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:17:12,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243495242] [2021-11-03 04:17:12,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243495242] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:17:12,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:17:12,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 04:17:12,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737269928] [2021-11-03 04:17:12,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:17:12,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:17:12,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:17:12,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:17:12,555 INFO L87 Difference]: Start difference. First operand 359 states and 437 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:14,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:17:14,208 INFO L93 Difference]: Finished difference Result 713 states and 858 transitions. [2021-11-03 04:17:14,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:17:14,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-03 04:17:14,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:17:14,213 INFO L225 Difference]: With dead ends: 713 [2021-11-03 04:17:14,213 INFO L226 Difference]: Without dead ends: 474 [2021-11-03 04:17:14,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:17:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-03 04:17:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 359. [2021-11-03 04:17:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 342 states have (on average 1.2690058479532165) internal successors, (434), 358 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 434 transitions. [2021-11-03 04:17:14,238 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 434 transitions. Word has length 79 [2021-11-03 04:17:14,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:17:14,239 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 434 transitions. [2021-11-03 04:17:14,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:17:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 434 transitions. [2021-11-03 04:17:14,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-03 04:17:14,241 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:17:14,241 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] [2021-11-03 04:17:14,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:17:14,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:17:14,455 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 04:17:14,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:17:14,455 INFO L85 PathProgramCache]: Analyzing trace with hash -878822160, now seen corresponding path program 1 times [2021-11-03 04:17:14,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:17:14,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866921667] [2021-11-03 04:17:14,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:17:14,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:17:14,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:17:14,459 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:17:14,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0565590c-12c2-45ca-8610-10c408784060/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:17:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:17:20,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1948 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-03 04:17:20,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:17:28,324 INFO L354 Elim1Store]: treesize reduction 560, result has 54.6 percent of original size [2021-11-03 04:17:28,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 624 treesize of output 912 [2021-11-03 04:17:28,399 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 04:17:28,400 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 1728 treesize of output 1708 [2021-11-03 04:17:28,448 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 04:17:28,449 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 1702 treesize of output 1682 [2021-11-03 04:18:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:27,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:49,632 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-03 04:18:49,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 723 treesize of output 723 [2021-11-03 04:18:50,001 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-03 04:18:50,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 719 treesize of output 719 [2021-11-03 04:20:50,967 WARN L207 SmtUtils]: Spent 1.84 m on a formula simplification. DAG size of input: 1178 DAG size of output: 750 [2021-11-03 04:20:50,974 INFO L354 Elim1Store]: treesize reduction 1688, result has 56.6 percent of original size [2021-11-03 04:20:50,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 799 treesize of output 2423