./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/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 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:48,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:48,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:48,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:48,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:48,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:48,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:48,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:48,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:48,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:48,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:48,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:48,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:48,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:48,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:48,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:48,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:48,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:48,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:48,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:48,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:48,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:48,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:48,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:48,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:48,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:48,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:48,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:48,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:48,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:48,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:48,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:48,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:48,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:48,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:48,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:48,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:48,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:48,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:48,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:48,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:48,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:46:48,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:48,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:48,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:48,753 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:48,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:48,754 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:48,754 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:46:48,754 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:48,755 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:48,755 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:46:48,756 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:46:48,756 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:48,756 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:46:48,757 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:46:48,757 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:46:48,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:48,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:46:48,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:48,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:48,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:48,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:48,759 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:48,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:48,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:48,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:48,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:48,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:48,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:48,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:48,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:48,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:48,763 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:46:48,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:46:48,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:48,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:48,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:48,764 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 [2021-11-03 03:46:49,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:49,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:49,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:49,121 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:49,122 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:49,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-03 03:46:49,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data/264bac1e2/3270d55f395148adb13f7a508505fe0b/FLAG1e71d1ee9 [2021-11-03 03:46:50,012 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:46:50,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-03 03:46:50,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data/264bac1e2/3270d55f395148adb13f7a508505fe0b/FLAG1e71d1ee9 [2021-11-03 03:46:50,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data/264bac1e2/3270d55f395148adb13f7a508505fe0b [2021-11-03 03:46:50,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:46:50,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:46:50,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:50,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:46:50,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:46:50,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:50" (1/1) ... [2021-11-03 03:46:50,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c05c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:50, skipping insertion in model container [2021-11-03 03:46:50,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:50" (1/1) ... [2021-11-03 03:46:50,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:46:50,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:50,933 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-03 03:46:50,940 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-03 03:46:50,963 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:46:50,969 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:46:52,009 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:46:52,086 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,111 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:52,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:46:52,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:46:52,496 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:46:52,497 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:46:52,499 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:46:52,500 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:46:52,501 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:46:52,502 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:46:52,502 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:46:52,503 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:46:52,646 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:46:52,655 INFO L168 Benchmark]: Toolchain (without parser) took 2085.22 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 50.1 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:52,656 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 65.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:46:52,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2079.83 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 50.1 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:52,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 65.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2079.83 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 50.1 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.2 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/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 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:54,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:54,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:54,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:54,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:54,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:54,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:54,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:54,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:54,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:54,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:54,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:54,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:54,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:54,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:54,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:54,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:54,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:54,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:54,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:54,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:54,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:54,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:54,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:55,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:55,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:55,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:55,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:55,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:55,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:55,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:55,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:55,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:55,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:55,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:55,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:55,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:55,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:55,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:55,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:55,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:55,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:46:55,060 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:55,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:55,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:55,061 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:55,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:55,061 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:55,062 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:55,062 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:55,062 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:55,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:55,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:55,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:55,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:55,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:55,064 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:55,064 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:46:55,064 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:46:55,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:55,065 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:55,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:55,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:55,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:46:55,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:55,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:55,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:55,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:55,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:55,069 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:46:55,070 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:46:55,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:55,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:55,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:55,071 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 [2021-11-03 03:46:55,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:55,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:55,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:55,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:55,537 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:55,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-03 03:46:55,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data/34e9dca5d/9468dfeaef0e410abcbf0feda27e7525/FLAG41e624a3e [2021-11-03 03:46:56,506 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:46:56,507 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-03 03:46:56,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data/34e9dca5d/9468dfeaef0e410abcbf0feda27e7525/FLAG41e624a3e [2021-11-03 03:46:57,002 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/data/34e9dca5d/9468dfeaef0e410abcbf0feda27e7525 [2021-11-03 03:46:57,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:46:57,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:46:57,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:57,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:46:57,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:46:57,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:57" (1/1) ... [2021-11-03 03:46:57,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40feeb8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57, skipping insertion in model container [2021-11-03 03:46:57,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:57" (1/1) ... [2021-11-03 03:46:57,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:46:57,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:57,458 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-03 03:46:57,464 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-03 03:46:57,486 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:46:57,492 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:46:58,376 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:46:58,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,462 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,463 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:58,885 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:46:58,887 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:46:58,888 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:46:58,890 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:46:58,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:46:58,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:46:58,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:46:58,894 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:46:58,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:46:58,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:46:59,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:59,200 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:46:59,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:59,265 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-03 03:46:59,265 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-03 03:46:59,267 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:46:59,269 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:46:59,307 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:46:59,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,337 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,423 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:46:59,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:46:59,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:46:59,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:46:59,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:46:59,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:46:59,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:46:59,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:46:59,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:46:59,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:46:59,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,509 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:59,557 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:46:59,571 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-03 03:46:59,572 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_60d407e9-73a9-4c8d-acaa-e8949a3bc557/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-03 03:46:59,574 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:46:59,575 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:46:59,613 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:46:59,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:46:59,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:46:59,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:46:59,708 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:46:59,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:46:59,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:46:59,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:46:59,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:46:59,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:46:59,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:46:59,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:59,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:00,214 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:47:00,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00 WrapperNode [2021-11-03 03:47:00,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:47:00,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:47:00,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:47:00,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:47:00,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:47:00,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:47:00,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:47:00,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:47:00,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:47:00,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:47:00,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:47:00,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:47:00,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (1/1) ... [2021-11-03 03:47:00,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:47:00,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:47:00,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:47:00,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:47:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:47:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:47:00,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:47:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:47:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:47:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:47:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:47:00,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:47:00,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:47:00,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:47:00,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:47:00,740 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:47:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:47:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:47:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:47:00,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:47:19,243 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:47:19,243 INFO L299 CfgBuilder]: Removed 218 assume(true) statements. [2021-11-03 03:47:19,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:19 BoogieIcfgContainer [2021-11-03 03:47:19,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:47:19,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:47:19,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:47:19,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:47:19,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:46:57" (1/3) ... [2021-11-03 03:47:19,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a206eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:19, skipping insertion in model container [2021-11-03 03:47:19,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:00" (2/3) ... [2021-11-03 03:47:19,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a206eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:19, skipping insertion in model container [2021-11-03 03:47:19,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:19" (3/3) ... [2021-11-03 03:47:19,253 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2021-11-03 03:47:19,259 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:47:19,259 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-03 03:47:19,307 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:47:19,312 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 03:47:19,312 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-03 03:47:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 260 states have internal predecessors, (351), 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 03:47:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 03:47:19,340 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:19,340 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] [2021-11-03 03:47:19,341 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:47:19,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:19,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1330632047, now seen corresponding path program 1 times [2021-11-03 03:47:19,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:19,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416069504] [2021-11-03 03:47:19,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:19,418 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:19,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:19,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:19,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:47:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:23,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:47:23,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:24,259 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 03:47:24,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:24,493 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:24,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416069504] [2021-11-03 03:47:24,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416069504] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:24,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:24,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:47:24,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456313233] [2021-11-03 03:47:24,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:47:24,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:24,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:47:24,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:47:24,521 INFO L87 Difference]: Start difference. First operand has 261 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 260 states have internal predecessors, (351), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 03:47:24,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:24,580 INFO L93 Difference]: Finished difference Result 518 states and 697 transitions. [2021-11-03 03:47:24,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:47:24,582 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2021-11-03 03:47:24,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:24,601 INFO L225 Difference]: With dead ends: 518 [2021-11-03 03:47:24,601 INFO L226 Difference]: Without dead ends: 254 [2021-11-03 03:47:24,609 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 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 03:47:24,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-03 03:47:24,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-03 03:47:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 238 states have (on average 1.2773109243697478) internal successors, (304), 253 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 03:47:24,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 304 transitions. [2021-11-03 03:47:24,662 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 304 transitions. Word has length 62 [2021-11-03 03:47:24,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:24,663 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 304 transitions. [2021-11-03 03:47:24,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 03:47:24,663 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 304 transitions. [2021-11-03 03:47:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 03:47:24,667 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:24,667 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] [2021-11-03 03:47:24,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:24,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:24,883 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:47:24,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1348565053, now seen corresponding path program 1 times [2021-11-03 03:47:24,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:24,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96025618] [2021-11-03 03:47:24,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:24,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:24,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:24,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:24,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:47:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:29,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:47:29,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:29,721 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 03:47:29,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:30,030 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 03:47:30,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:30,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96025618] [2021-11-03 03:47:30,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96025618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:30,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:30,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 03:47:30,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674404487] [2021-11-03 03:47:30,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:47:30,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:30,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:47:30,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:47:30,035 INFO L87 Difference]: Start difference. First operand 254 states and 304 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 03:47:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:30,146 INFO L93 Difference]: Finished difference Result 496 states and 595 transitions. [2021-11-03 03:47:30,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:47:30,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-03 03:47:30,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:30,161 INFO L225 Difference]: With dead ends: 496 [2021-11-03 03:47:30,161 INFO L226 Difference]: Without dead ends: 256 [2021-11-03 03:47:30,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:47:30,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-03 03:47:30,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-03 03:47:30,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.275) internal successors, (306), 255 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 03:47:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 306 transitions. [2021-11-03 03:47:30,194 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 306 transitions. Word has length 62 [2021-11-03 03:47:30,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:30,194 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 306 transitions. [2021-11-03 03:47:30,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 03:47:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 306 transitions. [2021-11-03 03:47:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 03:47:30,197 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:30,198 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] [2021-11-03 03:47:30,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:30,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:30,399 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:47:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 87647803, now seen corresponding path program 1 times [2021-11-03 03:47:30,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:30,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560466388] [2021-11-03 03:47:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:30,406 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:30,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:30,407 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:30,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:47:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:34,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 03:47:34,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:35,613 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:35,614 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 03:47:35,990 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 03:47:35,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:37,251 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 03:47:37,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:37,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560466388] [2021-11-03 03:47:37,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560466388] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:37,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:37,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 03:47:37,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615142808] [2021-11-03 03:47:37,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:47:37,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:37,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:47:37,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:47:37,254 INFO L87 Difference]: Start difference. First operand 256 states and 306 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 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 03:47:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:58,306 INFO L93 Difference]: Finished difference Result 517 states and 619 transitions. [2021-11-03 03:47:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:47:58,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 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 62 [2021-11-03 03:47:58,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:58,312 INFO L225 Difference]: With dead ends: 517 [2021-11-03 03:47:58,312 INFO L226 Difference]: Without dead ends: 276 [2021-11-03 03:47:58,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-11-03 03:47:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-03 03:47:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 252. [2021-11-03 03:47:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 236 states have (on average 1.2754237288135593) internal successors, (301), 251 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 03:47:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 301 transitions. [2021-11-03 03:47:58,333 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 301 transitions. Word has length 62 [2021-11-03 03:47:58,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:58,334 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 301 transitions. [2021-11-03 03:47:58,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 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 03:47:58,334 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 301 transitions. [2021-11-03 03:47:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 03:47:58,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:58,337 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:47:58,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:58,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:58,559 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:47:58,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:58,559 INFO L85 PathProgramCache]: Analyzing trace with hash -606758363, now seen corresponding path program 1 times [2021-11-03 03:47:58,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:58,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719070597] [2021-11-03 03:47:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:58,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:58,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:58,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:58,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:48:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:02,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:48:02,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:03,110 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 03:48:03,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:03,470 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 03:48:03,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:03,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719070597] [2021-11-03 03:48:03,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719070597] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:03,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:48:03,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:48:03,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49996713] [2021-11-03 03:48:03,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:48:03,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:03,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:48:03,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:48:03,473 INFO L87 Difference]: Start difference. First operand 252 states and 301 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 03:48:06,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:06,344 INFO L93 Difference]: Finished difference Result 476 states and 567 transitions. [2021-11-03 03:48:06,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:48:06,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-03 03:48:06,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:06,347 INFO L225 Difference]: With dead ends: 476 [2021-11-03 03:48:06,347 INFO L226 Difference]: Without dead ends: 252 [2021-11-03 03:48:06,348 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 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 03:48:06,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-03 03:48:06,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-11-03 03:48:06,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 236 states have (on average 1.2669491525423728) internal successors, (299), 251 states have internal predecessors, (299), 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 03:48:06,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 299 transitions. [2021-11-03 03:48:06,361 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 299 transitions. Word has length 65 [2021-11-03 03:48:06,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:06,362 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 299 transitions. [2021-11-03 03:48:06,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 03:48:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 299 transitions. [2021-11-03 03:48:06,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-03 03:48:06,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:06,365 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:48:06,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 03:48:06,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:48:06,590 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:48:06,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:06,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1471353281, now seen corresponding path program 1 times [2021-11-03 03:48:06,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:06,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880626224] [2021-11-03 03:48:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:06,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:06,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:06,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:06,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:48:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:11,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 03:48:11,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:11,834 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:48:11,834 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 03:48:12,075 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 03:48:12,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:12,946 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 03:48:12,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 1 [2021-11-03 03:48:12,984 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 03:48:12,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:12,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880626224] [2021-11-03 03:48:12,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880626224] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:12,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:48:12,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2021-11-03 03:48:12,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025616325] [2021-11-03 03:48:12,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 03:48:12,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:12,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 03:48:12,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-03 03:48:12,990 INFO L87 Difference]: Start difference. First operand 252 states and 299 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:02,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:49:02,855 INFO L93 Difference]: Finished difference Result 525 states and 625 transitions. [2021-11-03 03:49:02,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:49:02,859 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-03 03:49:02,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:49:02,861 INFO L225 Difference]: With dead ends: 525 [2021-11-03 03:49:02,861 INFO L226 Difference]: Without dead ends: 317 [2021-11-03 03:49:02,862 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-11-03 03:49:02,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-11-03 03:49:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 248. [2021-11-03 03:49:02,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 232 states have (on average 1.2672413793103448) internal successors, (294), 247 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 03:49:02,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 294 transitions. [2021-11-03 03:49:02,878 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 294 transitions. Word has length 73 [2021-11-03 03:49:02,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:49:02,878 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 294 transitions. [2021-11-03 03:49:02,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:02,879 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 294 transitions. [2021-11-03 03:49:02,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 03:49:02,880 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:49:02,881 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] [2021-11-03 03:49:02,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:49:03,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:49:03,082 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:49:03,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:49:03,083 INFO L85 PathProgramCache]: Analyzing trace with hash 79871608, now seen corresponding path program 1 times [2021-11-03 03:49:03,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:49:03,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179557063] [2021-11-03 03:49:03,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:49:03,086 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:49:03,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:49:03,087 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:49:03,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:49:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:49:07,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:49:07,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:49:08,232 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 03:49:08,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:49:08,674 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 03:49:08,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:49:08,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179557063] [2021-11-03 03:49:08,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179557063] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:49:08,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:49:08,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:49:08,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119555979] [2021-11-03 03:49:08,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:49:08,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:49:08,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:49:08,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:49:08,676 INFO L87 Difference]: Start difference. First operand 248 states and 294 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 03:49:11,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:49:11,536 INFO L93 Difference]: Finished difference Result 439 states and 518 transitions. [2021-11-03 03:49:11,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:49:11,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 76 [2021-11-03 03:49:11,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:49:11,538 INFO L225 Difference]: With dead ends: 439 [2021-11-03 03:49:11,538 INFO L226 Difference]: Without dead ends: 248 [2021-11-03 03:49:11,539 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 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 03:49:11,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-03 03:49:11,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2021-11-03 03:49:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 232 states have (on average 1.2586206896551724) internal successors, (292), 247 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 03:49:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 292 transitions. [2021-11-03 03:49:11,552 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 292 transitions. Word has length 76 [2021-11-03 03:49:11,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:49:11,552 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 292 transitions. [2021-11-03 03:49:11,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 03:49:11,553 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 292 transitions. [2021-11-03 03:49:11,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-03 03:49:11,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:49:11,554 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] [2021-11-03 03:49:11,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 03:49:11,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:49:11,759 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:49:11,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:49:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash -880543268, now seen corresponding path program 1 times [2021-11-03 03:49:11,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:49:11,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617492195] [2021-11-03 03:49:11,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:49:11,762 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:49:11,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:49:11,763 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:49:11,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:49:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:49:16,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:49:16,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:49:17,630 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 03:49:17,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:49:18,202 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 03:49:18,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:49:18,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617492195] [2021-11-03 03:49:18,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617492195] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:49:18,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:49:18,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:49:18,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660301796] [2021-11-03 03:49:18,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:49:18,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:49:18,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:49:18,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:49:18,204 INFO L87 Difference]: Start difference. First operand 248 states and 292 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:21,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:49:21,335 INFO L93 Difference]: Finished difference Result 395 states and 464 transitions. [2021-11-03 03:49:21,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:49:21,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-03 03:49:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:49:21,340 INFO L225 Difference]: With dead ends: 395 [2021-11-03 03:49:21,340 INFO L226 Difference]: Without dead ends: 248 [2021-11-03 03:49:21,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:49:21,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-03 03:49:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2021-11-03 03:49:21,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 232 states have (on average 1.2543103448275863) internal successors, (291), 247 states have internal predecessors, (291), 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 03:49:21,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 291 transitions. [2021-11-03 03:49:21,361 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 291 transitions. Word has length 84 [2021-11-03 03:49:21,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:49:21,362 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 291 transitions. [2021-11-03 03:49:21,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:21,362 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 291 transitions. [2021-11-03 03:49:21,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-03 03:49:21,363 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:49:21,364 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:49:21,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:49:21,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:49:21,565 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:49:21,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:49:21,565 INFO L85 PathProgramCache]: Analyzing trace with hash 652615360, now seen corresponding path program 1 times [2021-11-03 03:49:21,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:49:21,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659244836] [2021-11-03 03:49:21,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:49:21,568 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:49:21,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:49:21,569 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:49:21,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:49:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:49:27,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:49:27,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:49:27,950 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 03:49:27,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:49:28,715 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 03:49:28,716 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:49:28,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659244836] [2021-11-03 03:49:28,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659244836] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:49:28,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:49:28,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:49:28,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496324445] [2021-11-03 03:49:28,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:49:28,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:49:28,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:49:28,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:49:28,718 INFO L87 Difference]: Start difference. First operand 248 states and 291 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:49:31,777 INFO L93 Difference]: Finished difference Result 379 states and 442 transitions. [2021-11-03 03:49:31,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:49:31,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-03 03:49:31,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:49:31,779 INFO L225 Difference]: With dead ends: 379 [2021-11-03 03:49:31,779 INFO L226 Difference]: Without dead ends: 248 [2021-11-03 03:49:31,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:49:31,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-03 03:49:31,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2021-11-03 03:49:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 232 states have (on average 1.25) internal successors, (290), 247 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 03:49:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 290 transitions. [2021-11-03 03:49:31,793 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 290 transitions. Word has length 92 [2021-11-03 03:49:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:49:31,793 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 290 transitions. [2021-11-03 03:49:31,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 290 transitions. [2021-11-03 03:49:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-03 03:49:31,794 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:49:31,794 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:49:31,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 03:49:31,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:49:32,001 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:49:32,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:49:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash -788299612, now seen corresponding path program 1 times [2021-11-03 03:49:32,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:49:32,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277031005] [2021-11-03 03:49:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:49:32,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:49:32,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:49:32,006 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:49:32,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 03:49:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:49:38,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1988 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:49:38,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:49:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:49:38,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:49:39,594 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 03:49:39,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:49:39,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277031005] [2021-11-03 03:49:39,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277031005] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:49:39,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:49:39,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:49:39,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081174946] [2021-11-03 03:49:39,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:49:39,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:49:39,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:49:39,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:49:39,597 INFO L87 Difference]: Start difference. First operand 248 states and 290 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:42,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:49:42,703 INFO L93 Difference]: Finished difference Result 363 states and 420 transitions. [2021-11-03 03:49:42,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:49:42,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-03 03:49:42,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:49:42,705 INFO L225 Difference]: With dead ends: 363 [2021-11-03 03:49:42,706 INFO L226 Difference]: Without dead ends: 248 [2021-11-03 03:49:42,706 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:49:42,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-03 03:49:42,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2021-11-03 03:49:42,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 232 states have (on average 1.2456896551724137) internal successors, (289), 247 states have internal predecessors, (289), 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 03:49:42,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 289 transitions. [2021-11-03 03:49:42,721 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 289 transitions. Word has length 100 [2021-11-03 03:49:42,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:49:42,722 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 289 transitions. [2021-11-03 03:49:42,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 289 transitions. [2021-11-03 03:49:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-03 03:49:42,724 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:49:42,724 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:49:42,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:49:42,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:49:42,938 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:49:42,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:49:42,939 INFO L85 PathProgramCache]: Analyzing trace with hash 749182856, now seen corresponding path program 1 times [2021-11-03 03:49:42,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:49:42,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942053612] [2021-11-03 03:49:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:49:42,943 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:49:42,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:49:42,943 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:49:42,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d407e9-73a9-4c8d-acaa-e8949a3bc557/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 03:58:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:20,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2047 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-03 03:58:20,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:20,100 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:58:20,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-03 03:58:20,676 INFO L354 Elim1Store]: treesize reduction 22, result has 43.6 percent of original size [2021-11-03 03:58:20,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 36 [2021-11-03 03:58:21,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-03 03:58:21,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-03 03:58:21,307 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-03 03:58:21,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2021-11-03 03:58:22,364 INFO L354 Elim1Store]: treesize reduction 1506, result has 0.5 percent of original size [2021-11-03 03:58:22,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 207 treesize of output 118 [2021-11-03 03:58:22,719 INFO L354 Elim1Store]: treesize reduction 1506, result has 0.5 percent of original size [2021-11-03 03:58:22,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 115 treesize of output 26 [2021-11-03 03:58:23,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 03:58:23,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 03:58:23,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-03 03:58:23,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18