./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_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_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/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_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/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_05f7912f-df36-4f3b-8091-11e5936e8aa0/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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:17:54,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:17:54,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:17:54,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:17:54,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:17:54,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:17:54,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:17:54,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:17:54,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:17:54,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:17:54,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:17:54,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:17:54,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:17:54,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:17:54,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:17:54,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:17:54,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:17:54,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:17:54,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:17:54,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:17:54,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:17:54,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:17:54,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:17:54,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:17:54,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:17:54,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:17:54,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:17:54,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:17:54,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:17:54,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:17:54,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:17:54,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:17:54,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:17:54,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:17:54,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:17:54,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:17:54,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:17:54,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:17:54,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:17:54,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:17:54,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:17:54,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:17:54,955 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:17:54,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:17:54,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:17:54,957 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:17:54,958 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:17:54,958 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:17:54,958 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:17:54,958 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:17:54,965 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:17:54,965 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:17:54,966 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:17:54,966 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:17:54,967 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:17:54,967 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:17:54,967 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:17:54,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:17:54,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:17:54,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:17:54,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:17:54,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:17:54,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:17:54,969 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:17:54,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:17:54,970 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:17:54,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:17:54,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:17:54,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:17:54,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:17:54,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:17:54,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:17:54,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:17:54,973 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:17:54,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:17:54,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:17:54,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:17:54,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:17:54,974 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2021-11-03 04:17:55,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:17:55,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:17:55,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:17:55,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:17:55,338 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:17:55,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-03 04:17:55,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data/e6a7ab85d/712a9467657b4cdf9143738608bebc5c/FLAG40eb731c8 [2021-11-03 04:17:56,207 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:17:56,207 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-03 04:17:56,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data/e6a7ab85d/712a9467657b4cdf9143738608bebc5c/FLAG40eb731c8 [2021-11-03 04:17:56,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data/e6a7ab85d/712a9467657b4cdf9143738608bebc5c [2021-11-03 04:17:56,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:17:56,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:17:56,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:56,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:17:56,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:17:56,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:56" (1/1) ... [2021-11-03 04:17:56,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49baf55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:56, skipping insertion in model container [2021-11-03 04:17:56,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:56" (1/1) ... [2021-11-03 04:17:56,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:17:56,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:17:57,241 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-03 04:17:57,250 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-03 04:17:57,278 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:17:57,284 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:17:58,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,227 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:17:58,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:17:58,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:17:58,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:17:58,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:17:58,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:17:58,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:17:58,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:17:58,627 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:17:58,628 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:17:58,628 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:17:58,797 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:17:58,814 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:17:58,825 INFO L168 Benchmark]: Toolchain (without parser) took 2074.83 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 66.3 MB in the beginning and 71.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:17:58,826 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:17:58,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2068.56 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 66.0 MB in the beginning and 71.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:17:58,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2068.56 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 66.0 MB in the beginning and 71.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 25.3 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/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_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/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_05f7912f-df36-4f3b-8091-11e5936e8aa0/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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:18:01,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:18:01,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:18:01,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:18:01,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:18:01,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:18:01,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:18:01,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:18:01,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:18:01,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:18:01,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:18:01,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:18:01,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:18:01,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:18:01,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:18:01,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:18:01,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:18:01,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:18:01,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:18:01,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:18:01,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:18:01,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:18:01,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:18:01,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:18:01,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:18:01,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:18:01,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:18:01,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:18:01,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:18:01,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:18:01,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:18:01,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:18:01,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:18:01,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:18:01,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:18:01,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:18:01,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:18:01,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:18:01,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:18:01,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:18:01,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:18:01,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:18:01,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:18:01,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:18:01,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:18:01,222 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:18:01,222 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:18:01,222 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:18:01,222 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:18:01,223 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:18:01,223 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:18:01,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:18:01,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:18:01,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:18:01,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:18:01,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:18:01,225 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:18:01,225 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:18:01,225 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:18:01,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:18:01,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:18:01,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:18:01,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:18:01,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:18:01,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:18:01,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:18:01,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:18:01,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:18:01,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:18:01,228 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:18:01,228 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:18:01,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:18:01,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:18:01,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:18:01,229 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2021-11-03 04:18:01,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:18:01,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:18:01,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:18:01,639 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:18:01,640 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:18:01,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-03 04:18:01,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data/b0600e188/5bf8ada0e1884e04857475685bb2e260/FLAGbde41d2f1 [2021-11-03 04:18:02,544 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:18:02,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-03 04:18:02,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data/b0600e188/5bf8ada0e1884e04857475685bb2e260/FLAGbde41d2f1 [2021-11-03 04:18:03,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/data/b0600e188/5bf8ada0e1884e04857475685bb2e260 [2021-11-03 04:18:03,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:18:03,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:18:03,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:18:03,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:18:03,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:18:03,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:18:03" (1/1) ... [2021-11-03 04:18:03,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fe8671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:03, skipping insertion in model container [2021-11-03 04:18:03,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:18:03" (1/1) ... [2021-11-03 04:18:03,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:18:03,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:18:03,592 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-03 04:18:03,600 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-03 04:18:03,624 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:18:03,631 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:18:04,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,729 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:04,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:18:05,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:18:05,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:18:05,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:18:05,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:18:05,143 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:18:05,144 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:18:05,157 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:18:05,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:18:05,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:18:05,310 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:18:05,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,441 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:18:05,491 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:18:05,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:18:05,546 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-03 04:18:05,547 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-03 04:18:05,548 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:18:05,549 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:18:05,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,593 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,593 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:18:05,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:18:05,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:18:05,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:18:05,638 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:18:05,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:18:05,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:18:05,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:18:05,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:18:05,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:18:05,684 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:18:05,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,769 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,779 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,791 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:18:05,836 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:18:05,861 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-03 04:18:05,862 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_05f7912f-df36-4f3b-8091-11e5936e8aa0/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-03 04:18:05,863 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:18:05,867 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:18:05,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,924 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,924 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:05,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,000 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:18:06,001 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:18:06,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:18:06,003 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:18:06,004 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:18:06,004 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:18:06,005 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:18:06,006 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:18:06,006 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:18:06,007 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:18:06,038 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:18:06,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,111 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,111 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:18:06,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:18:06,377 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:18:06,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06 WrapperNode [2021-11-03 04:18:06,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:18:06,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:18:06,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:18:06,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:18:06,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:06,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:06,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:18:06,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:18:06,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:18:06,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:18:06,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:06,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:06,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:06,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:07,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:07,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:07,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:07,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:18:07,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:18:07,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:18:07,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:18:07,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (1/1) ... [2021-11-03 04:18:07,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:18:07,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:18:07,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:18:07,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:18:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:18:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:18:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:18:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:18:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:18:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:18:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:18:07,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:18:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:18:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:18:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:18:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:18:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:18:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:18:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:18:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:18:40,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:18:40,945 INFO L299 CfgBuilder]: Removed 1637 assume(true) statements. [2021-11-03 04:18:40,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:18:40 BoogieIcfgContainer [2021-11-03 04:18:40,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:18:40,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:18:40,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:18:40,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:18:40,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:18:03" (1/3) ... [2021-11-03 04:18:40,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a6e7fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:18:40, skipping insertion in model container [2021-11-03 04:18:40,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:18:06" (2/3) ... [2021-11-03 04:18:40,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a6e7fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:18:40, skipping insertion in model container [2021-11-03 04:18:40,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:18:40" (3/3) ... [2021-11-03 04:18:40,959 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2021-11-03 04:18:40,964 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:18:40,964 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-11-03 04:18:41,021 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:18:41,028 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:18:41,028 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-11-03 04:18:41,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 2061 states, 2006 states have (on average 1.4272183449651046) internal successors, (2863), 2060 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:41,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:18:41,090 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:18:41,091 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] [2021-11-03 04:18:41,091 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:18:41,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:18:41,099 INFO L85 PathProgramCache]: Analyzing trace with hash -771143003, now seen corresponding path program 1 times [2021-11-03 04:18:41,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:18:41,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247567971] [2021-11-03 04:18:41,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:18:41,122 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:18:41,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:18:41,125 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:18:41,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:18:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:18:45,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 1532 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:18:45,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:18:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:45,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:45,448 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:18:45,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247567971] [2021-11-03 04:18:45,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247567971] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:18:45,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:18:45,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:18:45,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802816318] [2021-11-03 04:18:45,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:18:45,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:18:45,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:18:45,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:18:45,474 INFO L87 Difference]: Start difference. First operand has 2061 states, 2006 states have (on average 1.4272183449651046) internal successors, (2863), 2060 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:45,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:18:45,576 INFO L93 Difference]: Finished difference Result 4116 states and 5719 transitions. [2021-11-03 04:18:45,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:18:45,578 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2021-11-03 04:18:45,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:18:45,600 INFO L225 Difference]: With dead ends: 4116 [2021-11-03 04:18:45,601 INFO L226 Difference]: Without dead ends: 2056 [2021-11-03 04:18:45,608 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:18:45,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2021-11-03 04:18:45,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2056. [2021-11-03 04:18:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.326173826173826) internal successors, (2655), 2055 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:45,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2655 transitions. [2021-11-03 04:18:45,770 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2655 transitions. Word has length 41 [2021-11-03 04:18:45,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:18:45,770 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2655 transitions. [2021-11-03 04:18:45,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2655 transitions. [2021-11-03 04:18:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-03 04:18:45,779 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:18:45,782 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] [2021-11-03 04:18:45,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:18:45,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:18:45,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:18:45,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:18:45,996 INFO L85 PathProgramCache]: Analyzing trace with hash 890029669, now seen corresponding path program 1 times [2021-11-03 04:18:45,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:18:45,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691895235] [2021-11-03 04:18:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:18:45,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:18:45,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:18:46,002 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:18:46,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:18:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:18:49,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1532 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:18:49,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:18:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:50,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:50,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:50,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:18:50,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691895235] [2021-11-03 04:18:50,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691895235] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:18:50,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:18:50,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:18:50,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108754200] [2021-11-03 04:18:50,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:18:50,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:18:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:18:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:18:50,228 INFO L87 Difference]: Start difference. First operand 2056 states and 2655 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:18:50,620 INFO L93 Difference]: Finished difference Result 4034 states and 5208 transitions. [2021-11-03 04:18:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:18:50,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2021-11-03 04:18:50,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:18:50,632 INFO L225 Difference]: With dead ends: 4034 [2021-11-03 04:18:50,633 INFO L226 Difference]: Without dead ends: 2058 [2021-11-03 04:18:50,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:18:50,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2021-11-03 04:18:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2056. [2021-11-03 04:18:50,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3246753246753247) internal successors, (2652), 2055 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2652 transitions. [2021-11-03 04:18:50,704 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2652 transitions. Word has length 41 [2021-11-03 04:18:50,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:18:50,704 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2652 transitions. [2021-11-03 04:18:50,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:18:50,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2652 transitions. [2021-11-03 04:18:50,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 04:18:50,709 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:18:50,709 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] [2021-11-03 04:18:50,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:18:50,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:18:50,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:18:50,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:18:50,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1055647481, now seen corresponding path program 1 times [2021-11-03 04:18:50,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:18:50,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234493435] [2021-11-03 04:18:50,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:18:50,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:18:50,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:18:50,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:18:50,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:18:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:18:54,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:18:54,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:18:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:54,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:18:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:18:55,230 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:18:55,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234493435] [2021-11-03 04:18:55,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234493435] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:18:55,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:18:55,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:18:55,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637079458] [2021-11-03 04:18:55,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:18:55,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:18:55,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:18:55,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:18:55,233 INFO L87 Difference]: Start difference. First operand 2056 states and 2652 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:01,997 INFO L93 Difference]: Finished difference Result 4157 states and 5359 transitions. [2021-11-03 04:19:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:19:01,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 49 [2021-11-03 04:19:01,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:02,009 INFO L225 Difference]: With dead ends: 4157 [2021-11-03 04:19:02,010 INFO L226 Difference]: Without dead ends: 2149 [2021-11-03 04:19:02,013 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:19:02,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2021-11-03 04:19:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 2056. [2021-11-03 04:19:02,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3231768231768233) internal successors, (2649), 2055 states have internal predecessors, (2649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2649 transitions. [2021-11-03 04:19:02,080 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2649 transitions. Word has length 49 [2021-11-03 04:19:02,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:02,080 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2649 transitions. [2021-11-03 04:19:02,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:02,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2649 transitions. [2021-11-03 04:19:02,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 04:19:02,082 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:02,082 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 04:19:02,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:02,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:02,295 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:19:02,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:02,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1757033039, now seen corresponding path program 1 times [2021-11-03 04:19:02,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:02,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462344780] [2021-11-03 04:19:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:02,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:02,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:02,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:02,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:19:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:06,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:19:06,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:06,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:06,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:07,105 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:07,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462344780] [2021-11-03 04:19:07,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462344780] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:07,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:07,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:19:07,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263306107] [2021-11-03 04:19:07,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:19:07,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:07,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:19:07,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:19:07,107 INFO L87 Difference]: Start difference. First operand 2056 states and 2649 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 04:19:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:08,435 INFO L93 Difference]: Finished difference Result 5594 states and 7165 transitions. [2021-11-03 04:19:08,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:19:08,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 04:19:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:08,455 INFO L225 Difference]: With dead ends: 5594 [2021-11-03 04:19:08,456 INFO L226 Difference]: Without dead ends: 3617 [2021-11-03 04:19:08,460 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:19:08,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2021-11-03 04:19:08,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 2056. [2021-11-03 04:19:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3216783216783217) internal successors, (2646), 2055 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2646 transitions. [2021-11-03 04:19:08,539 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2646 transitions. Word has length 65 [2021-11-03 04:19:08,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:08,539 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2646 transitions. [2021-11-03 04:19:08,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 04:19:08,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2646 transitions. [2021-11-03 04:19:08,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-03 04:19:08,541 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:08,541 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] [2021-11-03 04:19:08,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:08,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:08,763 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:19:08,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:08,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1874634859, now seen corresponding path program 1 times [2021-11-03 04:19:08,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:08,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616164692] [2021-11-03 04:19:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:08,767 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:08,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:08,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:08,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:19:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:13,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:19:13,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:13,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:14,012 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:14,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616164692] [2021-11-03 04:19:14,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616164692] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:14,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:14,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-03 04:19:14,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982935877] [2021-11-03 04:19:14,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 04:19:14,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 04:19:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:19:14,013 INFO L87 Difference]: Start difference. First operand 2056 states and 2646 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:21,973 INFO L93 Difference]: Finished difference Result 8485 states and 10771 transitions. [2021-11-03 04:19:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:19:21,974 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 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 89 [2021-11-03 04:19:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:22,004 INFO L225 Difference]: With dead ends: 8485 [2021-11-03 04:19:22,004 INFO L226 Difference]: Without dead ends: 6492 [2021-11-03 04:19:22,010 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-03 04:19:22,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6492 states. [2021-11-03 04:19:22,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6492 to 2056. [2021-11-03 04:19:22,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3201798201798203) internal successors, (2643), 2055 states have internal predecessors, (2643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:22,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2643 transitions. [2021-11-03 04:19:22,122 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2643 transitions. Word has length 89 [2021-11-03 04:19:22,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:22,123 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2643 transitions. [2021-11-03 04:19:22,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:22,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2643 transitions. [2021-11-03 04:19:22,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-03 04:19:22,125 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:22,125 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] [2021-11-03 04:19:22,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:22,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:22,347 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:19:22,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:22,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1808280541, now seen corresponding path program 1 times [2021-11-03 04:19:22,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:22,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929820701] [2021-11-03 04:19:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:22,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:22,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:22,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:22,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:19:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:26,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1867 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:19:26,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:27,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:27,497 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:27,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929820701] [2021-11-03 04:19:27,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929820701] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:27,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:27,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:19:27,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862922283] [2021-11-03 04:19:27,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:19:27,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:27,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:19:27,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:19:27,500 INFO L87 Difference]: Start difference. First operand 2056 states and 2643 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:28,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:19:28,910 INFO L93 Difference]: Finished difference Result 5825 states and 7465 transitions. [2021-11-03 04:19:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:19:28,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-03 04:19:28,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:19:28,925 INFO L225 Difference]: With dead ends: 5825 [2021-11-03 04:19:28,925 INFO L226 Difference]: Without dead ends: 3847 [2021-11-03 04:19:28,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:19:28,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2021-11-03 04:19:29,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 2128. [2021-11-03 04:19:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2074 states have (on average 1.3206364513018323) internal successors, (2739), 2127 states have internal predecessors, (2739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2739 transitions. [2021-11-03 04:19:29,036 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2739 transitions. Word has length 105 [2021-11-03 04:19:29,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:19:29,037 INFO L470 AbstractCegarLoop]: Abstraction has 2128 states and 2739 transitions. [2021-11-03 04:19:29,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:19:29,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2739 transitions. [2021-11-03 04:19:29,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-03 04:19:29,038 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:19:29,039 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] [2021-11-03 04:19:29,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:19:29,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:19:29,255 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:19:29,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:19:29,255 INFO L85 PathProgramCache]: Analyzing trace with hash 525112097, now seen corresponding path program 1 times [2021-11-03 04:19:29,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:19:29,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081410100] [2021-11-03 04:19:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:19:29,258 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:19:29,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:19:29,260 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:19:29,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:19:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:19:33,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:19:33,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:19:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:34,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:19:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:19:35,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:19:35,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081410100] [2021-11-03 04:19:35,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081410100] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:19:35,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:19:35,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 04:19:35,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011816876] [2021-11-03 04:19:35,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:19:35,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:19:35,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:19:35,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:19:35,328 INFO L87 Difference]: Start difference. First operand 2128 states and 2739 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:03,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:03,177 INFO L93 Difference]: Finished difference Result 5815 states and 7444 transitions. [2021-11-03 04:23:03,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:23:03,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-03 04:23:03,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:03,200 INFO L225 Difference]: With dead ends: 5815 [2021-11-03 04:23:03,200 INFO L226 Difference]: Without dead ends: 3762 [2021-11-03 04:23:03,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:23:03,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2021-11-03 04:23:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 2128. [2021-11-03 04:23:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2074 states have (on average 1.314850530376085) internal successors, (2727), 2127 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2727 transitions. [2021-11-03 04:23:03,334 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2727 transitions. Word has length 105 [2021-11-03 04:23:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:03,335 INFO L470 AbstractCegarLoop]: Abstraction has 2128 states and 2727 transitions. [2021-11-03 04:23:03,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2727 transitions. [2021-11-03 04:23:03,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-03 04:23:03,336 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:03,336 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] [2021-11-03 04:23:03,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:23:03,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:23:03,537 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:23:03,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:03,537 INFO L85 PathProgramCache]: Analyzing trace with hash -603131867, now seen corresponding path program 1 times [2021-11-03 04:23:03,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:23:03,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512521802] [2021-11-03 04:23:03,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:03,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:23:03,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:23:03,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:23:03,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:23:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:08,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:23:08,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:09,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:09,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:09,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:09,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512521802] [2021-11-03 04:23:09,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512521802] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:09,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:09,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-03 04:23:09,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163464236] [2021-11-03 04:23:09,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:23:09,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:09,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:23:09,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:23:09,627 INFO L87 Difference]: Start difference. First operand 2128 states and 2727 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:28:13,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:13,713 INFO L93 Difference]: Finished difference Result 5827 states and 7432 transitions. [2021-11-03 04:28:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:28:13,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-03 04:28:13,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:13,736 INFO L225 Difference]: With dead ends: 5827 [2021-11-03 04:28:13,737 INFO L226 Difference]: Without dead ends: 3774 [2021-11-03 04:28:13,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:28:13,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3774 states. [2021-11-03 04:28:13,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3774 to 2152. [2021-11-03 04:28:13,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2152 states, 2098 states have (on average 1.3055290753098188) internal successors, (2739), 2151 states have internal predecessors, (2739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:28:13,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 2739 transitions. [2021-11-03 04:28:13,872 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 2739 transitions. Word has length 105 [2021-11-03 04:28:13,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:13,872 INFO L470 AbstractCegarLoop]: Abstraction has 2152 states and 2739 transitions. [2021-11-03 04:28:13,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:28:13,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 2739 transitions. [2021-11-03 04:28:13,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-03 04:28:13,874 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:13,874 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] [2021-11-03 04:28:13,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:28:14,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:14,087 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:28:14,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:14,087 INFO L85 PathProgramCache]: Analyzing trace with hash -930562519, now seen corresponding path program 1 times [2021-11-03 04:28:14,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:14,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772621584] [2021-11-03 04:28:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:14,090 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:14,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:14,092 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:14,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:28:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:18,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 04:28:18,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:20,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-03 04:28:20,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-03 04:28:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:28:20,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:23,025 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:28:23,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-03 04:28:23,068 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-03 04:28:23,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-03 04:28:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:28:23,493 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:23,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772621584] [2021-11-03 04:28:23,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772621584] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:28:23,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:28:23,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-11-03 04:28:23,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479783654] [2021-11-03 04:28:23,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:28:23,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:23,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:28:23,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:28:23,495 INFO L87 Difference]: Start difference. First operand 2152 states and 2739 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:28:44,089 WARN L207 SmtUtils]: Spent 12.14 s on a formula simplification that was a NOOP. DAG size: 33 [2021-11-03 04:28:56,368 WARN L207 SmtUtils]: Spent 12.19 s on a formula simplification that was a NOOP. DAG size: 40 [2021-11-03 04:31:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:10,598 INFO L93 Difference]: Finished difference Result 12019 states and 15220 transitions. [2021-11-03 04:31:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 04:31:10,600 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 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 105 [2021-11-03 04:31:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:10,641 INFO L225 Difference]: With dead ends: 12019 [2021-11-03 04:31:10,641 INFO L226 Difference]: Without dead ends: 9971 [2021-11-03 04:31:10,645 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2021-11-03 04:31:10,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9971 states. [2021-11-03 04:31:10,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9971 to 2160. [2021-11-03 04:31:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2160 states, 2106 states have (on average 1.3043684710351378) internal successors, (2747), 2159 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2160 states to 2160 states and 2747 transitions. [2021-11-03 04:31:10,844 INFO L78 Accepts]: Start accepts. Automaton has 2160 states and 2747 transitions. Word has length 105 [2021-11-03 04:31:10,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:10,845 INFO L470 AbstractCegarLoop]: Abstraction has 2160 states and 2747 transitions. [2021-11-03 04:31:10,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:10,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2160 states and 2747 transitions. [2021-11-03 04:31:10,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-03 04:31:10,847 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:10,847 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] [2021-11-03 04:31:10,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:11,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:11,063 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:31:11,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:11,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1607248072, now seen corresponding path program 1 times [2021-11-03 04:31:11,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:11,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859156250] [2021-11-03 04:31:11,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:11,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:11,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:11,067 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:11,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:31:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:16,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:31:16,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:16,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:16,535 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:16,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859156250] [2021-11-03 04:31:16,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859156250] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:16,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:16,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:31:16,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431637282] [2021-11-03 04:31:16,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:31:16,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:16,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:31:16,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:31:16,537 INFO L87 Difference]: Start difference. First operand 2160 states and 2747 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:16,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:16,667 INFO L93 Difference]: Finished difference Result 2299 states and 2927 transitions. [2021-11-03 04:31:16,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:31:16,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2021-11-03 04:31:16,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:16,672 INFO L225 Difference]: With dead ends: 2299 [2021-11-03 04:31:16,672 INFO L226 Difference]: Without dead ends: 2161 [2021-11-03 04:31:16,673 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 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 04:31:16,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2021-11-03 04:31:16,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2161. [2021-11-03 04:31:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2107 states have (on average 1.3042240151874704) internal successors, (2748), 2160 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2748 transitions. [2021-11-03 04:31:16,797 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2748 transitions. Word has length 107 [2021-11-03 04:31:16,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:16,798 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 2748 transitions. [2021-11-03 04:31:16,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2748 transitions. [2021-11-03 04:31:16,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-03 04:31:16,800 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:16,800 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:16,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-03 04:31:17,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:17,027 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:31:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:17,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1748947406, now seen corresponding path program 1 times [2021-11-03 04:31:17,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:17,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950916165] [2021-11-03 04:31:17,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:17,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:17,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:17,031 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:17,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:31:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:22,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:31:22,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:22,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:23,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:23,546 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:23,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950916165] [2021-11-03 04:31:23,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950916165] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:23,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:23,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:31:23,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678576548] [2021-11-03 04:31:23,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:31:23,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:23,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:31:23,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:31:23,548 INFO L87 Difference]: Start difference. First operand 2161 states and 2748 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:23,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:23,986 INFO L93 Difference]: Finished difference Result 4626 states and 5884 transitions. [2021-11-03 04:31:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:31:23,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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 115 [2021-11-03 04:31:23,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:23,990 INFO L225 Difference]: With dead ends: 4626 [2021-11-03 04:31:23,991 INFO L226 Difference]: Without dead ends: 2693 [2021-11-03 04:31:23,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:31:23,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-11-03 04:31:24,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2161. [2021-11-03 04:31:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2107 states have (on average 1.3028001898433792) internal successors, (2745), 2160 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:24,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2745 transitions. [2021-11-03 04:31:24,161 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2745 transitions. Word has length 115 [2021-11-03 04:31:24,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:24,161 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 2745 transitions. [2021-11-03 04:31:24,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:24,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2745 transitions. [2021-11-03 04:31:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-03 04:31:24,163 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:24,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:24,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:24,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:24,364 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:31:24,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:24,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1620670275, now seen corresponding path program 1 times [2021-11-03 04:31:24,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:24,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377643749] [2021-11-03 04:31:24,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:24,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:24,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:24,370 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:24,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:31:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:29,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:31:29,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:30,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:31,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:31,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377643749] [2021-11-03 04:31:31,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377643749] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:31,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:31,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-03 04:31:31,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831976394] [2021-11-03 04:31:31,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 04:31:31,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:31,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 04:31:31,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:31:31,029 INFO L87 Difference]: Start difference. First operand 2161 states and 2745 transitions. Second operand has 10 states, 10 states have (on average 22.1) internal successors, (221), 10 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:40,083 INFO L93 Difference]: Finished difference Result 5540 states and 7011 transitions. [2021-11-03 04:31:40,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:31:40,084 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.1) internal successors, (221), 10 states have internal predecessors, (221), 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 119 [2021-11-03 04:31:40,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:40,091 INFO L225 Difference]: With dead ends: 5540 [2021-11-03 04:31:40,091 INFO L226 Difference]: Without dead ends: 3567 [2021-11-03 04:31:40,095 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:31:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3567 states. [2021-11-03 04:31:40,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3567 to 2161. [2021-11-03 04:31:40,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2107 states have (on average 1.3013763644992882) internal successors, (2742), 2160 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2742 transitions. [2021-11-03 04:31:40,281 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2742 transitions. Word has length 119 [2021-11-03 04:31:40,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:40,281 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 2742 transitions. [2021-11-03 04:31:40,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.1) internal successors, (221), 10 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2742 transitions. [2021-11-03 04:31:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-03 04:31:40,284 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:40,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:40,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:40,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:40,507 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:31:40,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:40,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1126137639, now seen corresponding path program 1 times [2021-11-03 04:31:40,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:40,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145848933] [2021-11-03 04:31:40,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:40,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:40,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:40,512 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:40,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:31:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:46,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1972 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:31:46,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:46,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:47,583 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:47,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145848933] [2021-11-03 04:31:47,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145848933] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:47,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:47,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 04:31:47,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042548825] [2021-11-03 04:31:47,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:31:47,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:47,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:31:47,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:31:47,585 INFO L87 Difference]: Start difference. First operand 2161 states and 2742 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:49,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:49,077 INFO L93 Difference]: Finished difference Result 6112 states and 7746 transitions. [2021-11-03 04:31:49,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:31:49,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 127 [2021-11-03 04:31:49,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:49,084 INFO L225 Difference]: With dead ends: 6112 [2021-11-03 04:31:49,084 INFO L226 Difference]: Without dead ends: 4178 [2021-11-03 04:31:49,087 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:31:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2021-11-03 04:31:49,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 2161. [2021-11-03 04:31:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2107 states have (on average 1.299952539155197) internal successors, (2739), 2160 states have internal predecessors, (2739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2739 transitions. [2021-11-03 04:31:49,325 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2739 transitions. Word has length 127 [2021-11-03 04:31:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:49,325 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 2739 transitions. [2021-11-03 04:31:49,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2739 transitions. [2021-11-03 04:31:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-03 04:31:49,328 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:49,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:49,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-03 04:31:49,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:49,551 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:31:49,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:49,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1038591800, now seen corresponding path program 1 times [2021-11-03 04:31:49,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:49,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762058202] [2021-11-03 04:31:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:49,554 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:49,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:49,555 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:49,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 04:31:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:55,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2002 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 04:31:55,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:56,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:57,075 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 04:31:57,075 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:57,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762058202] [2021-11-03 04:31:57,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762058202] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:57,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:57,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:31:57,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469826307] [2021-11-03 04:31:57,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:31:57,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:57,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:31:57,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:31:57,077 INFO L87 Difference]: Start difference. First operand 2161 states and 2739 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:05,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:32:05,301 INFO L93 Difference]: Finished difference Result 6148 states and 7786 transitions. [2021-11-03 04:32:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 04:32:05,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 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 139 [2021-11-03 04:32:05,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:32:05,308 INFO L225 Difference]: With dead ends: 6148 [2021-11-03 04:32:05,308 INFO L226 Difference]: Without dead ends: 4190 [2021-11-03 04:32:05,312 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-11-03 04:32:05,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2021-11-03 04:32:05,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 2161. [2021-11-03 04:32:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2107 states have (on average 1.298528713811106) internal successors, (2736), 2160 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:05,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2736 transitions. [2021-11-03 04:32:05,499 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2736 transitions. Word has length 139 [2021-11-03 04:32:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:32:05,501 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 2736 transitions. [2021-11-03 04:32:05,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2736 transitions. [2021-11-03 04:32:05,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-03 04:32:05,503 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:32:05,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:32:05,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 04:32:05,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:32:05,727 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:32:05,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:32:05,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1674173396, now seen corresponding path program 1 times [2021-11-03 04:32:05,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:32:05,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371513579] [2021-11-03 04:32:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:32:05,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:32:05,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:32:05,731 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:32:05,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 04:32:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:32:11,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:32:11,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:32:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:12,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:32:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:12,874 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:32:12,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371513579] [2021-11-03 04:32:12,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371513579] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:32:12,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:32:12,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:32:12,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892223576] [2021-11-03 04:32:12,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:32:12,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:32:12,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:32:12,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:32:12,877 INFO L87 Difference]: Start difference. First operand 2161 states and 2736 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:13,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:32:13,208 INFO L93 Difference]: Finished difference Result 4550 states and 5772 transitions. [2021-11-03 04:32:13,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:32:13,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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 147 [2021-11-03 04:32:13,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:32:13,213 INFO L225 Difference]: With dead ends: 4550 [2021-11-03 04:32:13,213 INFO L226 Difference]: Without dead ends: 3357 [2021-11-03 04:32:13,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:32:13,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2021-11-03 04:32:13,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 2164. [2021-11-03 04:32:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2110 states have (on average 1.2981042654028436) internal successors, (2739), 2163 states have internal predecessors, (2739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 2739 transitions. [2021-11-03 04:32:13,341 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 2739 transitions. Word has length 147 [2021-11-03 04:32:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:32:13,341 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 2739 transitions. [2021-11-03 04:32:13,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:13,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 2739 transitions. [2021-11-03 04:32:13,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-03 04:32:13,343 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:32:13,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:32:13,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-03 04:32:13,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:32:13,567 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:32:13,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:32:13,568 INFO L85 PathProgramCache]: Analyzing trace with hash 392488759, now seen corresponding path program 1 times [2021-11-03 04:32:13,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:32:13,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861651742] [2021-11-03 04:32:13,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:32:13,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:32:13,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:32:13,572 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:32:13,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-03 04:32:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:32:19,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:32:19,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:32:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:20,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:32:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:21,868 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:32:21,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861651742] [2021-11-03 04:32:21,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861651742] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:32:21,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:32:21,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-03 04:32:21,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588667028] [2021-11-03 04:32:21,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:32:21,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:32:21,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:32:21,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:32:21,869 INFO L87 Difference]: Start difference. First operand 2164 states and 2739 transitions. Second operand has 12 states, 12 states have (on average 24.666666666666668) internal successors, (296), 12 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:32:28,761 INFO L93 Difference]: Finished difference Result 3583 states and 4537 transitions. [2021-11-03 04:32:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:32:28,762 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 24.666666666666668) internal successors, (296), 12 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2021-11-03 04:32:28,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:32:28,764 INFO L225 Difference]: With dead ends: 3583 [2021-11-03 04:32:28,764 INFO L226 Difference]: Without dead ends: 2528 [2021-11-03 04:32:28,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-11-03 04:32:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2021-11-03 04:32:28,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2164. [2021-11-03 04:32:28,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2110 states have (on average 1.295734597156398) internal successors, (2734), 2163 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:28,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 2734 transitions. [2021-11-03 04:32:28,889 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 2734 transitions. Word has length 152 [2021-11-03 04:32:28,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:32:28,890 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 2734 transitions. [2021-11-03 04:32:28,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.666666666666668) internal successors, (296), 12 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:28,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 2734 transitions. [2021-11-03 04:32:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-03 04:32:28,892 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:32:28,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:32:28,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-03 04:32:29,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:32:29,107 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:32:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:32:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1701195769, now seen corresponding path program 1 times [2021-11-03 04:32:29,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:32:29,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93801480] [2021-11-03 04:32:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:32:29,111 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:32:29,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:32:29,112 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:32:29,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-03 04:32:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:32:35,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:32:35,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:32:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:36,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:32:37,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:37,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:32:37,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93801480] [2021-11-03 04:32:37,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93801480] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:32:37,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:32:37,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 04:32:37,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092363365] [2021-11-03 04:32:37,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:32:37,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:32:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:32:37,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:32:37,203 INFO L87 Difference]: Start difference. First operand 2164 states and 2734 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:47,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:32:47,492 INFO L93 Difference]: Finished difference Result 5222 states and 6603 transitions. [2021-11-03 04:32:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:32:47,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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 160 [2021-11-03 04:32:47,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:32:47,496 INFO L225 Difference]: With dead ends: 5222 [2021-11-03 04:32:47,496 INFO L226 Difference]: Without dead ends: 3295 [2021-11-03 04:32:47,498 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:32:47,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2021-11-03 04:32:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 2164. [2021-11-03 04:32:47,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2110 states have (on average 1.29478672985782) internal successors, (2732), 2163 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 2732 transitions. [2021-11-03 04:32:47,707 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 2732 transitions. Word has length 160 [2021-11-03 04:32:47,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:32:47,707 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 2732 transitions. [2021-11-03 04:32:47,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:32:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 2732 transitions. [2021-11-03 04:32:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-03 04:32:47,708 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:32:47,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:32:47,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-03 04:32:47,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:32:47,911 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:32:47,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:32:47,911 INFO L85 PathProgramCache]: Analyzing trace with hash 2065434497, now seen corresponding path program 1 times [2021-11-03 04:32:47,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:32:47,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038750548] [2021-11-03 04:32:47,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:32:47,915 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:32:47,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:32:47,916 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:32:47,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-03 04:32:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:32:54,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:32:54,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:32:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:55,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:32:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:55,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:32:55,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038750548] [2021-11-03 04:32:55,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038750548] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:32:55,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:32:55,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:32:55,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259569130] [2021-11-03 04:32:55,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:32:55,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:32:55,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:32:55,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:32:55,439 INFO L87 Difference]: Start difference. First operand 2164 states and 2732 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:03,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:33:03,250 INFO L93 Difference]: Finished difference Result 4666 states and 5946 transitions. [2021-11-03 04:33:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:33:03,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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 168 [2021-11-03 04:33:03,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:33:03,254 INFO L225 Difference]: With dead ends: 4666 [2021-11-03 04:33:03,254 INFO L226 Difference]: Without dead ends: 2549 [2021-11-03 04:33:03,256 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:33:03,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2021-11-03 04:33:03,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2318. [2021-11-03 04:33:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2264 states have (on average 1.2747349823321554) internal successors, (2886), 2317 states have internal predecessors, (2886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2886 transitions. [2021-11-03 04:33:03,469 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2886 transitions. Word has length 168 [2021-11-03 04:33:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:33:03,469 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2886 transitions. [2021-11-03 04:33:03,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:33:03,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2886 transitions. [2021-11-03 04:33:03,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-03 04:33:03,471 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:33:03,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:33:03,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-03 04:33:03,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:33:03,695 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 04:33:03,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:33:03,695 INFO L85 PathProgramCache]: Analyzing trace with hash -540589057, now seen corresponding path program 1 times [2021-11-03 04:33:03,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:33:03,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946139782] [2021-11-03 04:33:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:33:03,699 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:33:03,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:33:03,700 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:33:03,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05f7912f-df36-4f3b-8091-11e5936e8aa0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-03 04:33:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:33:16,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:33:16,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:33:16,822 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:33:16,823 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 131 treesize of output 35 [2021-11-03 04:33:18,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:33:18,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:33:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:33:20,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:33:20,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946139782] [2021-11-03 04:33:20,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946139782] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:33:20,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:33:20,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-11-03 04:33:20,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151502898] [2021-11-03 04:33:20,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 04:33:20,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:33:20,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 04:33:20,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:33:20,691 INFO L87 Difference]: Start difference. First operand 2318 states and 2886 transitions. Second operand has 16 states, 16 states have (on average 13.375) internal successors, (214), 16 states have internal predecessors, (214), 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)