./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_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_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/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_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/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_2202b584-581e-4fc2-9efb-c5810694c9d2/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 b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:42:11,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:42:11,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:42:11,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:42:11,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:42:11,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:42:11,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:42:11,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:42:11,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:42:11,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:42:11,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:42:11,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:42:11,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:42:11,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:42:11,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:42:11,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:42:11,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:42:11,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:42:11,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:42:11,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:42:11,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:42:11,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:42:11,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:42:11,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:42:11,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:42:11,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:42:11,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:42:11,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:42:11,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:42:11,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:42:11,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:42:11,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:42:11,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:42:11,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:42:11,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:42:11,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:42:11,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:42:11,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:42:11,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:42:11,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:42:11,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:42:11,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:42:11,870 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:42:11,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:42:11,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:42:11,872 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:42:11,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:42:11,873 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:42:11,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:42:11,873 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:42:11,880 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:42:11,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:42:11,881 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:42:11,881 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:42:11,881 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:42:11,882 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:42:11,882 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:42:11,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:42:11,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:42:11,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:42:11,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:42:11,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:42:11,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:42:11,884 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:42:11,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:42:11,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:42:11,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:42:11,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:42:11,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:42:11,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:42:11,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:42:11,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:42:11,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:42:11,888 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:42:11,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:42:11,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:42:11,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:42:11,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:42:11,889 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_2202b584-581e-4fc2-9efb-c5810694c9d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2021-11-03 03:42:12,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:42:12,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:42:12,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:42:12,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:42:12,250 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:42:12,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-03 03:42:12,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data/26c34e10f/8be10cd4f09b4c4a89b6c4819a82bff1/FLAG56a9eb747 [2021-11-03 03:42:13,386 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:42:13,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-03 03:42:13,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data/26c34e10f/8be10cd4f09b4c4a89b6c4819a82bff1/FLAG56a9eb747 [2021-11-03 03:42:13,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data/26c34e10f/8be10cd4f09b4c4a89b6c4819a82bff1 [2021-11-03 03:42:13,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:42:13,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:42:13,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:42:13,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:42:13,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:42:13,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:42:13" (1/1) ... [2021-11-03 03:42:13,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bca7cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:13, skipping insertion in model container [2021-11-03 03:42:13,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:42:13" (1/1) ... [2021-11-03 03:42:13,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:42:13,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:42:13,895 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_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-03 03:42:13,908 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_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-03 03:42:13,935 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:42:13,950 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:42:14,861 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:42:14,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:14,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:14,938 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:14,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:14,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:14,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:14,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:14,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:14,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:15,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:42:15,390 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:42:15,392 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:42:15,393 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:42:15,395 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:42:15,396 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:42:15,396 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:42:15,397 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:42:15,398 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:42:15,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:42:15,574 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:42:15,581 INFO L168 Benchmark]: Toolchain (without parser) took 2137.13 ms. Allocated memory was 98.6 MB in the beginning and 148.9 MB in the end (delta: 50.3 MB). Free memory was 55.7 MB in the beginning and 92.6 MB in the end (delta: -36.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:42:15,582 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 71.4 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:42:15,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2134.55 ms. Allocated memory was 98.6 MB in the beginning and 148.9 MB in the end (delta: 50.3 MB). Free memory was 55.5 MB in the beginning and 92.6 MB in the end (delta: -37.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:42:15,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 71.4 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2134.55 ms. Allocated memory was 98.6 MB in the beginning and 148.9 MB in the end (delta: 50.3 MB). Free memory was 55.5 MB in the beginning and 92.6 MB in the end (delta: -37.1 MB). Peak memory consumption was 12.2 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_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/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_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/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_2202b584-581e-4fc2-9efb-c5810694c9d2/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 b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:42:17,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:42:17,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:42:17,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:42:17,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:42:18,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:42:18,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:42:18,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:42:18,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:42:18,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:42:18,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:42:18,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:42:18,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:42:18,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:42:18,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:42:18,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:42:18,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:42:18,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:42:18,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:42:18,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:42:18,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:42:18,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:42:18,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:42:18,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:42:18,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:42:18,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:42:18,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:42:18,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:42:18,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:42:18,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:42:18,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:42:18,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:42:18,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:42:18,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:42:18,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:42:18,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:42:18,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:42:18,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:42:18,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:42:18,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:42:18,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:42:18,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:42:18,155 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:42:18,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:42:18,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:42:18,157 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:42:18,157 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:42:18,158 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:42:18,158 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:42:18,158 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:42:18,158 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:42:18,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:42:18,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:42:18,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:42:18,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:42:18,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:42:18,162 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:42:18,163 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:42:18,163 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:42:18,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:42:18,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:42:18,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:42:18,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:42:18,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:42:18,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:42:18,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:42:18,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:42:18,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:42:18,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:42:18,166 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:42:18,166 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:42:18,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:42:18,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:42:18,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:42:18,167 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_2202b584-581e-4fc2-9efb-c5810694c9d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2021-11-03 03:42:18,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:42:18,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:42:18,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:42:18,598 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:42:18,599 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:42:18,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-03 03:42:18,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data/43810dd01/0e71cb55adde45a387e47541677e0d73/FLAG71570a186 [2021-11-03 03:42:19,656 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:42:19,657 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-03 03:42:19,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data/43810dd01/0e71cb55adde45a387e47541677e0d73/FLAG71570a186 [2021-11-03 03:42:20,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/data/43810dd01/0e71cb55adde45a387e47541677e0d73 [2021-11-03 03:42:20,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:42:20,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:42:20,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:42:20,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:42:20,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:42:20,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:42:20" (1/1) ... [2021-11-03 03:42:20,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d8df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:20, skipping insertion in model container [2021-11-03 03:42:20,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:42:20" (1/1) ... [2021-11-03 03:42:20,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:42:20,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:42:20,557 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_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-03 03:42:20,563 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_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-03 03:42:20,591 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:42:20,601 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:42:21,478 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:42:21,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:21,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:21,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:21,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:21,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:21,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:21,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:21,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:21,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,080 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:42:22,081 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:42:22,082 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:42:22,083 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:42:22,084 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:42:22,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:42:22,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:42:22,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:42:22,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:42:22,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:42:22,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:42:22,413 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:42:22,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:42:22,501 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_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-03 03:42:22,502 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_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-03 03:42:22,503 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:42:22,504 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:42:22,564 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:42:22,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,593 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:42:22,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:42:22,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:42:22,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:42:22,653 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:42:22,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:42:22,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:42:22,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:42:22,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:42:22,657 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:42:22,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:42:22,792 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:42:22,818 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_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4501,4514] [2021-11-03 03:42:22,818 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_2202b584-581e-4fc2-9efb-c5810694c9d2/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i[4561,4574] [2021-11-03 03:42:22,820 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:42:22,822 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:42:22,858 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:42:22,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,873 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:42:22,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:42:22,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:42:22,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:42:22,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:42:22,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:42:22,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:42:22,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:42:22,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:42:22,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:42:22,971 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:22,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:23,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:42:23,340 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:42:23,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23 WrapperNode [2021-11-03 03:42:23,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:42:23,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:42:23,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:42:23,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:42:23,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:42:23,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:42:23,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:42:23,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:42:23,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:42:23,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:42:23,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:42:23,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:42:23,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (1/1) ... [2021-11-03 03:42:23,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:42:23,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:42:23,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:42:23,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:42:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:42:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:42:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:42:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:42:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:42:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:42:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:42:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:42:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:42:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:42:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:42:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:42:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:42:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:42:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:42:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:42:40,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:42:40,643 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-11-03 03:42:40,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:42:40 BoogieIcfgContainer [2021-11-03 03:42:40,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:42:40,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:42:40,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:42:40,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:42:40,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:42:20" (1/3) ... [2021-11-03 03:42:40,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713e2c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:42:40, skipping insertion in model container [2021-11-03 03:42:40,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:23" (2/3) ... [2021-11-03 03:42:40,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713e2c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:42:40, skipping insertion in model container [2021-11-03 03:42:40,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:42:40" (3/3) ... [2021-11-03 03:42:40,660 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2021-11-03 03:42:40,675 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:42:40,675 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-03 03:42:40,746 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:42:40,767 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:42:40,768 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-03 03:42:40,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 234 states have (on average 1.4487179487179487) internal successors, (339), 249 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 03:42:40,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:40,808 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] [2021-11-03 03:42:40,810 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:42:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:40,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1889202216, now seen corresponding path program 1 times [2021-11-03 03:42:40,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:42:40,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862123980] [2021-11-03 03:42:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:40,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:42:40,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:42:40,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:42:40,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:42:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:45,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:42:45,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:45,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:45,992 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:42:45,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862123980] [2021-11-03 03:42:45,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862123980] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:42:45,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:42:45,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:42:45,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554980355] [2021-11-03 03:42:45,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:42:46,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:42:46,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:42:46,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:42:46,016 INFO L87 Difference]: Start difference. First operand has 250 states, 234 states have (on average 1.4487179487179487) internal successors, (339), 249 states have internal predecessors, (339), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:46,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:42:46,059 INFO L93 Difference]: Finished difference Result 494 states and 671 transitions. [2021-11-03 03:42:46,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:42:46,061 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-03 03:42:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:42:46,079 INFO L225 Difference]: With dead ends: 494 [2021-11-03 03:42:46,079 INFO L226 Difference]: Without dead ends: 243 [2021-11-03 03:42:46,086 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:42:46,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-03 03:42:46,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-03 03:42:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.3201754385964912) internal successors, (301), 242 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:46,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 301 transitions. [2021-11-03 03:42:46,165 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 301 transitions. Word has length 40 [2021-11-03 03:42:46,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:42:46,171 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 301 transitions. [2021-11-03 03:42:46,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:46,172 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 301 transitions. [2021-11-03 03:42:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 03:42:46,175 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:46,176 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] [2021-11-03 03:42:46,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 03:42:46,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:42:46,390 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:42:46,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:46,391 INFO L85 PathProgramCache]: Analyzing trace with hash -947073706, now seen corresponding path program 1 times [2021-11-03 03:42:46,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:42:46,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405769918] [2021-11-03 03:42:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:46,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:42:46,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:42:46,401 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:42:46,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:42:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:50,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 03:42:50,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:52,149 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:52,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 59 [2021-11-03 03:42:52,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:52,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:54,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:54,541 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:42:54,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405769918] [2021-11-03 03:42:54,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405769918] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:42:54,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:42:54,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-03 03:42:54,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237526655] [2021-11-03 03:42:54,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 03:42:54,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:42:54,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 03:42:54,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:42:54,546 INFO L87 Difference]: Start difference. First operand 243 states and 301 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 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 03:43:21,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:21,516 INFO L93 Difference]: Finished difference Result 468 states and 582 transitions. [2021-11-03 03:43:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:43:21,520 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 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 40 [2021-11-03 03:43:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:21,523 INFO L225 Difference]: With dead ends: 468 [2021-11-03 03:43:21,523 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 03:43:21,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-11-03 03:43:21,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 03:43:21,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-11-03 03:43:21,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 240 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:21,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 298 transitions. [2021-11-03 03:43:21,544 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 298 transitions. Word has length 40 [2021-11-03 03:43:21,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:21,545 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 298 transitions. [2021-11-03 03:43:21,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 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 03:43:21,545 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 298 transitions. [2021-11-03 03:43:21,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 03:43:21,548 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:21,548 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] [2021-11-03 03:43:21,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 03:43:21,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:43:21,762 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:43:21,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:43:21,763 INFO L85 PathProgramCache]: Analyzing trace with hash -497813694, now seen corresponding path program 1 times [2021-11-03 03:43:21,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:43:21,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209992699] [2021-11-03 03:43:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:43:21,770 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:43:21,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:43:21,771 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:43:21,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:43:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:26,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:43:26,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:43:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:26,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:26,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:43:26,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209992699] [2021-11-03 03:43:26,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209992699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:43:26,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:43:26,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:43:26,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251061404] [2021-11-03 03:43:26,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:43:26,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:43:26,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:43:26,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:43:26,975 INFO L87 Difference]: Start difference. First operand 241 states and 298 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:27,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:27,282 INFO L93 Difference]: Finished difference Result 404 states and 494 transitions. [2021-11-03 03:43:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:43:27,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-03 03:43:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:27,290 INFO L225 Difference]: With dead ends: 404 [2021-11-03 03:43:27,291 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 03:43:27,292 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:43:27,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 03:43:27,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-11-03 03:43:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 226 states have (on average 1.3097345132743363) internal successors, (296), 240 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:27,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 296 transitions. [2021-11-03 03:43:27,313 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 296 transitions. Word has length 43 [2021-11-03 03:43:27,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:27,314 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 296 transitions. [2021-11-03 03:43:27,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:27,314 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 296 transitions. [2021-11-03 03:43:27,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 03:43:27,317 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:27,317 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 03:43:27,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:43:27,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:43:27,530 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:43:27,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:43:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1143381873, now seen corresponding path program 1 times [2021-11-03 03:43:27,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:43:27,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542718045] [2021-11-03 03:43:27,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:43:27,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:43:27,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:43:27,536 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:43:27,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:43:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:32,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1660 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:43:32,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:43:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:32,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:32,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:43:32,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542718045] [2021-11-03 03:43:32,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542718045] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:43:32,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:43:32,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 03:43:32,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053343414] [2021-11-03 03:43:32,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:43:32,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:43:32,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:43:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:43:32,874 INFO L87 Difference]: Start difference. First operand 241 states and 296 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:34,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:34,077 INFO L93 Difference]: Finished difference Result 519 states and 623 transitions. [2021-11-03 03:43:34,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:43:34,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-03 03:43:34,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:34,080 INFO L225 Difference]: With dead ends: 519 [2021-11-03 03:43:34,081 INFO L226 Difference]: Without dead ends: 324 [2021-11-03 03:43:34,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-03 03:43:34,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-03 03:43:34,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 241. [2021-11-03 03:43:34,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 226 states have (on average 1.3008849557522124) internal successors, (294), 240 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:34,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 294 transitions. [2021-11-03 03:43:34,104 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 294 transitions. Word has length 47 [2021-11-03 03:43:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:34,105 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 294 transitions. [2021-11-03 03:43:34,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 294 transitions. [2021-11-03 03:43:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 03:43:34,107 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:34,108 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] [2021-11-03 03:43:34,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:43:34,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:43:34,330 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:43:34,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:43:34,330 INFO L85 PathProgramCache]: Analyzing trace with hash 507286413, now seen corresponding path program 1 times [2021-11-03 03:43:34,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:43:34,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319460603] [2021-11-03 03:43:34,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:43:34,334 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:43:34,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:43:34,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:43:34,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:43:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:39,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:43:39,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:43:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:39,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:39,861 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:43:39,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319460603] [2021-11-03 03:43:39,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319460603] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:43:39,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:43:39,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:43:39,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076001287] [2021-11-03 03:43:39,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:43:39,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:43:39,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:43:39,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:43:39,864 INFO L87 Difference]: Start difference. First operand 241 states and 294 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:40,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:40,396 INFO L93 Difference]: Finished difference Result 405 states and 489 transitions. [2021-11-03 03:43:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:43:40,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 55 [2021-11-03 03:43:40,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:40,399 INFO L225 Difference]: With dead ends: 405 [2021-11-03 03:43:40,400 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 03:43:40,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:43:40,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 03:43:40,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-11-03 03:43:40,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 226 states have (on average 1.2920353982300885) internal successors, (292), 240 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 292 transitions. [2021-11-03 03:43:40,419 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 292 transitions. Word has length 55 [2021-11-03 03:43:40,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:40,420 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 292 transitions. [2021-11-03 03:43:40,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 292 transitions. [2021-11-03 03:43:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 03:43:40,422 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:40,422 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] [2021-11-03 03:43:40,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:43:40,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:43:40,623 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:43:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:43:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash -40884098, now seen corresponding path program 1 times [2021-11-03 03:43:40,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:43:40,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111165773] [2021-11-03 03:43:40,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:43:40,628 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:43:40,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:43:40,630 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:43:40,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:43:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:45,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:43:45,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:43:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:45,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:46,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:43:46,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111165773] [2021-11-03 03:43:46,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111165773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:43:46,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:43:46,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 03:43:46,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666808168] [2021-11-03 03:43:46,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:43:46,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:43:46,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:43:46,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:43:46,436 INFO L87 Difference]: Start difference. First operand 241 states and 292 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:47,904 INFO L93 Difference]: Finished difference Result 421 states and 509 transitions. [2021-11-03 03:43:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:43:47,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-03 03:43:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:47,908 INFO L225 Difference]: With dead ends: 421 [2021-11-03 03:43:47,908 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 03:43:47,908 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 03:43:47,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 03:43:47,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-11-03 03:43:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 226 states have (on average 1.2831858407079646) internal successors, (290), 240 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 290 transitions. [2021-11-03 03:43:47,924 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 290 transitions. Word has length 67 [2021-11-03 03:43:47,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:47,924 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 290 transitions. [2021-11-03 03:43:47,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:47,925 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 290 transitions. [2021-11-03 03:43:47,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 03:43:47,926 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:47,927 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:43:47,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:43:48,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:43:48,134 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:43:48,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:43:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash -606742046, now seen corresponding path program 1 times [2021-11-03 03:43:48,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:43:48,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773620680] [2021-11-03 03:43:48,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:43:48,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:43:48,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:43:48,139 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:43:48,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:43:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:53,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:43:53,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:43:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:53,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:53,840 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:43:53,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773620680] [2021-11-03 03:43:53,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773620680] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:43:53,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:43:53,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:43:53,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962475918] [2021-11-03 03:43:53,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:43:53,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:43:53,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:43:53,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:43:53,842 INFO L87 Difference]: Start difference. First operand 241 states and 290 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:54,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:54,135 INFO L93 Difference]: Finished difference Result 564 states and 670 transitions. [2021-11-03 03:43:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:43:54,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 03:43:54,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:54,139 INFO L225 Difference]: With dead ends: 564 [2021-11-03 03:43:54,139 INFO L226 Difference]: Without dead ends: 399 [2021-11-03 03:43:54,140 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 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 03:43:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2021-11-03 03:43:54,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 253. [2021-11-03 03:43:54,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 238 states have (on average 1.2857142857142858) internal successors, (306), 252 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 306 transitions. [2021-11-03 03:43:54,160 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 306 transitions. Word has length 75 [2021-11-03 03:43:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:54,161 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 306 transitions. [2021-11-03 03:43:54,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:43:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 306 transitions. [2021-11-03 03:43:54,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 03:43:54,162 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:54,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:43:54,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 03:43:54,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:43:54,378 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:43:54,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:43:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash -97268956, now seen corresponding path program 1 times [2021-11-03 03:43:54,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:43:54,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054875536] [2021-11-03 03:43:54,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:43:54,382 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:43:54,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:43:54,383 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:43:54,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:43:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:59,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1813 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 03:43:59,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:44:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:44:00,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:44:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:44:01,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:44:01,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054875536] [2021-11-03 03:44:01,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054875536] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:44:01,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:44:01,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 03:44:01,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487491189] [2021-11-03 03:44:01,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:44:01,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:44:01,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:44:01,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:44:01,254 INFO L87 Difference]: Start difference. First operand 253 states and 306 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:44:31,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:44:31,370 INFO L93 Difference]: Finished difference Result 589 states and 703 transitions. [2021-11-03 03:44:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:44:31,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 03:44:31,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:44:31,377 INFO L225 Difference]: With dead ends: 589 [2021-11-03 03:44:31,377 INFO L226 Difference]: Without dead ends: 409 [2021-11-03 03:44:31,378 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-03 03:44:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-11-03 03:44:31,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 253. [2021-11-03 03:44:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 238 states have (on average 1.2773109243697478) internal successors, (304), 252 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:44:31,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 304 transitions. [2021-11-03 03:44:31,400 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 304 transitions. Word has length 75 [2021-11-03 03:44:31,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:44:31,400 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 304 transitions. [2021-11-03 03:44:31,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:44:31,401 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 304 transitions. [2021-11-03 03:44:31,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 03:44:31,402 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:44:31,402 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:44:31,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 03:44:31,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:44:31,614 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:44:31,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:44:31,614 INFO L85 PathProgramCache]: Analyzing trace with hash -35229342, now seen corresponding path program 1 times [2021-11-03 03:44:31,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:44:31,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124109978] [2021-11-03 03:44:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:44:31,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:44:31,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:44:31,620 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:44:31,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 03:44:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:44:37,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:44:37,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:44:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:44:38,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:44:38,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:44:38,906 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:44:38,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124109978] [2021-11-03 03:44:38,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124109978] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:44:38,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:44:38,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-03 03:44:38,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077634817] [2021-11-03 03:44:38,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 03:44:38,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:44:38,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 03:44:38,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:44:38,907 INFO L87 Difference]: Start difference. First operand 253 states and 304 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:06,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:06,043 INFO L93 Difference]: Finished difference Result 591 states and 701 transitions. [2021-11-03 03:45:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 03:45:06,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 03:45:06,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:06,050 INFO L225 Difference]: With dead ends: 591 [2021-11-03 03:45:06,050 INFO L226 Difference]: Without dead ends: 411 [2021-11-03 03:45:06,051 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:45:06,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2021-11-03 03:45:06,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 257. [2021-11-03 03:45:06,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 242 states have (on average 1.2644628099173554) internal successors, (306), 256 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 306 transitions. [2021-11-03 03:45:06,073 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 306 transitions. Word has length 75 [2021-11-03 03:45:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:06,074 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 306 transitions. [2021-11-03 03:45:06,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 306 transitions. [2021-11-03 03:45:06,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 03:45:06,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:06,076 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:45:06,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:06,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:06,290 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:45:06,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:06,290 INFO L85 PathProgramCache]: Analyzing trace with hash -169242848, now seen corresponding path program 1 times [2021-11-03 03:45:06,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:06,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229411993] [2021-11-03 03:45:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:06,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:06,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:06,295 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:06,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 03:45:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:12,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:45:12,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:12,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:13,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:13,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:13,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229411993] [2021-11-03 03:45:13,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229411993] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:13,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:13,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:45:13,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405202772] [2021-11-03 03:45:13,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:45:13,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:13,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:45:13,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:45:13,235 INFO L87 Difference]: Start difference. First operand 257 states and 306 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:14,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:14,435 INFO L93 Difference]: Finished difference Result 398 states and 469 transitions. [2021-11-03 03:45:14,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:45:14,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-03 03:45:14,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:14,438 INFO L225 Difference]: With dead ends: 398 [2021-11-03 03:45:14,438 INFO L226 Difference]: Without dead ends: 257 [2021-11-03 03:45:14,438 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:45:14,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-11-03 03:45:14,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2021-11-03 03:45:14,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 242 states have (on average 1.256198347107438) internal successors, (304), 256 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:14,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 304 transitions. [2021-11-03 03:45:14,456 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 304 transitions. Word has length 75 [2021-11-03 03:45:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:14,456 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 304 transitions. [2021-11-03 03:45:14,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:14,457 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 304 transitions. [2021-11-03 03:45:14,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 03:45:14,458 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:14,459 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] [2021-11-03 03:45:14,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:14,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:14,686 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:45:14,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash -197476502, now seen corresponding path program 1 times [2021-11-03 03:45:14,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:14,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256959833] [2021-11-03 03:45:14,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:14,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:14,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:14,694 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:14,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 03:45:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:21,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 1923 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:45:21,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:21,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:21,930 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:21,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256959833] [2021-11-03 03:45:21,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256959833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:21,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:21,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:45:21,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264969475] [2021-11-03 03:45:21,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:45:21,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:45:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:45:21,933 INFO L87 Difference]: Start difference. First operand 257 states and 304 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:22,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:22,660 INFO L93 Difference]: Finished difference Result 499 states and 596 transitions. [2021-11-03 03:45:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:45:22,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 91 [2021-11-03 03:45:22,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:22,670 INFO L225 Difference]: With dead ends: 499 [2021-11-03 03:45:22,670 INFO L226 Difference]: Without dead ends: 287 [2021-11-03 03:45:22,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:45:22,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-03 03:45:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 269. [2021-11-03 03:45:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 254 states have (on average 1.2440944881889764) internal successors, (316), 268 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 316 transitions. [2021-11-03 03:45:22,689 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 316 transitions. Word has length 91 [2021-11-03 03:45:22,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:22,690 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 316 transitions. [2021-11-03 03:45:22,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:45:22,690 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 316 transitions. [2021-11-03 03:45:22,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 03:45:22,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:22,692 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] [2021-11-03 03:45:22,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-03 03:45:22,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:22,906 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 03:45:22,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:22,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1972483864, now seen corresponding path program 1 times [2021-11-03 03:45:22,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:22,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651051725] [2021-11-03 03:45:22,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:22,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:22,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:22,912 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:22,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2202b584-581e-4fc2-9efb-c5810694c9d2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 03:45:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:29,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1926 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-03 03:45:29,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:38,964 INFO L354 Elim1Store]: treesize reduction 560, result has 54.6 percent of original size [2021-11-03 03:45:38,965 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 03:45:39,034 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 03:45:39,035 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 03:45:39,086 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-03 03:45:39,086 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 03:47:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:11,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:35,405 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-03 03:47:35,409 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 03:47:35,774 INFO L354 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2021-11-03 03:47:35,774 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 03:49:30,685 WARN L207 SmtUtils]: Spent 1.69 m on a formula simplification. DAG size of input: 1178 DAG size of output: 750 [2021-11-03 03:49:30,696 INFO L354 Elim1Store]: treesize reduction 1688, result has 56.6 percent of original size [2021-11-03 03:49:30,698 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