./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_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_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/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_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/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_b9e74f24-67d0-4580-9243-3af146cec4cb/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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:11:38,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:11:38,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:11:38,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:11:38,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:11:38,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:11:38,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:11:38,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:11:38,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:11:38,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:11:38,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:11:38,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:11:38,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:11:38,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:11:38,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:11:38,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:11:38,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:11:38,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:11:38,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:11:38,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:11:38,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:11:38,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:11:38,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:11:38,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:11:38,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:11:38,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:11:38,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:11:38,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:11:38,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:11:38,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:11:38,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:11:38,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:11:38,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:11:38,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:11:38,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:11:38,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:11:38,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:11:38,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:11:38,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:11:38,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:11:38,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:11:38,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:11:39,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:11:39,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:11:39,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:11:39,012 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:11:39,013 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:11:39,013 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:11:39,013 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:11:39,013 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:11:39,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:11:39,022 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:11:39,023 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:11:39,023 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:11:39,023 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:11:39,023 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:11:39,024 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:11:39,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:11:39,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:11:39,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:11:39,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:11:39,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:11:39,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:11:39,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:11:39,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:11:39,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:11:39,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:11:39,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:11:39,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:11:39,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:11:39,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:11:39,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:11:39,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:11:39,029 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:11:39,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:11:39,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:11:39,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:11:39,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:11:39,030 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_b9e74f24-67d0-4580-9243-3af146cec4cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-03 05:11:39,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:11:39,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:11:39,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:11:39,410 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:11:39,411 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:11:39,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-03 05:11:39,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data/d7e27f327/5fd676542d5e4c119e1df61685887e70/FLAGf4fd88b42 [2021-11-03 05:11:40,312 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:11:40,313 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-03 05:11:40,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data/d7e27f327/5fd676542d5e4c119e1df61685887e70/FLAGf4fd88b42 [2021-11-03 05:11:40,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data/d7e27f327/5fd676542d5e4c119e1df61685887e70 [2021-11-03 05:11:40,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:11:40,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:11:40,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:11:40,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:11:40,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:11:40,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:11:40" (1/1) ... [2021-11-03 05:11:40,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86bd95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:40, skipping insertion in model container [2021-11-03 05:11:40,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:11:40" (1/1) ... [2021-11-03 05:11:40,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:11:40,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:11:41,194 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_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-03 05:11:41,202 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_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-03 05:11:41,227 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:11:41,233 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:11:42,190 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:11:42,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:42,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:11:42,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:11:42,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:11:42,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:11:42,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:11:42,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:11:42,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:11:42,761 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:11:42,762 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:11:42,763 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:11:42,917 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:11:42,923 INFO L168 Benchmark]: Toolchain (without parser) took 2091.49 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 72.5 MB in the beginning and 107.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:11:42,924 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 104.9 MB. Free memory is still 82.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:11:42,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2089.13 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 72.2 MB in the beginning and 107.0 MB in the end (delta: -34.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:11:42,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 104.9 MB. Free memory is still 82.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2089.13 ms. Allocated memory was 104.9 MB in the beginning and 155.2 MB in the end (delta: 50.3 MB). Free memory was 72.2 MB in the beginning and 107.0 MB in the end (delta: -34.8 MB). Peak memory consumption was 34.6 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_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/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_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/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_b9e74f24-67d0-4580-9243-3af146cec4cb/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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:11:45,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:11:45,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:11:45,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:11:45,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:11:45,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:11:45,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:11:45,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:11:45,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:11:45,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:11:45,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:11:45,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:11:45,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:11:45,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:11:45,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:11:45,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:11:45,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:11:45,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:11:45,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:11:45,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:11:45,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:11:45,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:11:45,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:11:45,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:11:45,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:11:45,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:11:45,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:11:45,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:11:45,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:11:45,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:11:45,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:11:45,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:11:45,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:11:45,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:11:45,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:11:45,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:11:45,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:11:45,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:11:45,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:11:45,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:11:45,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:11:45,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:11:45,257 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:11:45,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:11:45,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:11:45,259 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:11:45,259 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:11:45,259 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:11:45,260 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:11:45,260 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:11:45,260 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:11:45,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:11:45,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:11:45,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:11:45,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:11:45,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:11:45,263 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:11:45,263 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:11:45,264 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:11:45,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:11:45,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:11:45,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:11:45,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:11:45,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:11:45,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:11:45,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:11:45,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:11:45,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:11:45,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:11:45,266 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:11:45,266 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:11:45,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:11:45,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:11:45,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:11:45,267 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_b9e74f24-67d0-4580-9243-3af146cec4cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-03 05:11:45,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:11:45,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:11:45,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:11:45,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:11:45,706 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:11:45,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-03 05:11:45,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data/4df6b2520/fa876342012b4b298a2b37c1a65d1044/FLAG1039bef7c [2021-11-03 05:11:46,726 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:11:46,727 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-03 05:11:46,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data/4df6b2520/fa876342012b4b298a2b37c1a65d1044/FLAG1039bef7c [2021-11-03 05:11:47,172 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/data/4df6b2520/fa876342012b4b298a2b37c1a65d1044 [2021-11-03 05:11:47,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:11:47,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:11:47,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:11:47,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:11:47,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:11:47,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:11:47" (1/1) ... [2021-11-03 05:11:47,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2daf9761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:47, skipping insertion in model container [2021-11-03 05:11:47,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:11:47" (1/1) ... [2021-11-03 05:11:47,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:11:47,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:11:47,575 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_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-03 05:11:47,581 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_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-03 05:11:47,603 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:11:47,608 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:11:48,372 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:11:48,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,490 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:48,861 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:11:48,862 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:11:48,864 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:11:48,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:11:48,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:11:48,867 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:11:48,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:11:48,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:11:48,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:11:48,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:11:49,028 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,029 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:11:49,127 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:11:49,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:11:49,215 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_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-03 05:11:49,215 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_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-03 05:11:49,217 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:11:49,217 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:11:49,248 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:11:49,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,354 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:11:49,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:11:49,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:11:49,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:11:49,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:11:49,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:11:49,359 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:11:49,359 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:11:49,360 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:11:49,360 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:11:49,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:11:49,453 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:11:49,465 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_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-03 05:11:49,466 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_b9e74f24-67d0-4580-9243-3af146cec4cb/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-03 05:11:49,468 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:11:49,468 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:11:49,497 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:11:49,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,511 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:11:49,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:11:49,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:11:49,553 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:11:49,554 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:11:49,555 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:11:49,555 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:11:49,556 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:11:49,556 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:11:49,557 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:11:49,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:11:49,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:11:49,844 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:11:49,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49 WrapperNode [2021-11-03 05:11:49,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:11:49,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:11:49,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:11:49,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:11:49,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:49,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:11:50,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:11:50,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:11:50,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:11:50,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:11:50,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:11:50,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:11:50,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:11:50,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (1/1) ... [2021-11-03 05:11:50,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:11:50,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:11:50,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:11:50,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:11:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:11:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:11:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:11:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:11:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:11:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:11:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:11:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:11:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:11:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:11:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:11:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 05:11:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:11:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:11:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:11:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:12:06,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:12:06,691 INFO L299 CfgBuilder]: Removed 165 assume(true) statements. [2021-11-03 05:12:06,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:12:06 BoogieIcfgContainer [2021-11-03 05:12:06,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:12:06,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:12:06,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:12:06,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:12:06,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:11:47" (1/3) ... [2021-11-03 05:12:06,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e41a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:12:06, skipping insertion in model container [2021-11-03 05:12:06,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:49" (2/3) ... [2021-11-03 05:12:06,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e41a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:12:06, skipping insertion in model container [2021-11-03 05:12:06,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:12:06" (3/3) ... [2021-11-03 05:12:06,702 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-03 05:12:06,708 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:12:06,708 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-03 05:12:06,754 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:12:06,761 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 05:12:06,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-03 05:12:06,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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 05:12:06,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 05:12:06,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:06,789 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:12:06,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:12:06,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:06,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1473699063, now seen corresponding path program 1 times [2021-11-03 05:12:06,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:06,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702242702] [2021-11-03 05:12:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:06,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:06,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:06,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:12:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:11,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:12:11,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:11,265 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 05:12:11,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:11,435 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 05:12:11,436 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:11,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702242702] [2021-11-03 05:12:11,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702242702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:11,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:12:11,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:12:11,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93747982] [2021-11-03 05:12:11,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:12:11,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:11,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:12:11,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:12:11,470 INFO L87 Difference]: Start difference. First operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:12:11,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:11,534 INFO L93 Difference]: Finished difference Result 407 states and 558 transitions. [2021-11-03 05:12:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:12:11,535 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-03 05:12:11,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:11,551 INFO L225 Difference]: With dead ends: 407 [2021-11-03 05:12:11,551 INFO L226 Difference]: Without dead ends: 199 [2021-11-03 05:12:11,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 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 05:12:11,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-03 05:12:11,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-03 05:12:11,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2894736842105263) internal successors, (245), 198 states have internal predecessors, (245), 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 05:12:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2021-11-03 05:12:11,622 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 43 [2021-11-03 05:12:11,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:11,623 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2021-11-03 05:12:11,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:12:11,623 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2021-11-03 05:12:11,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 05:12:11,626 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:11,626 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 05:12:11,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:12:11,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:12:11,850 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:12:11,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:11,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1036054349, now seen corresponding path program 1 times [2021-11-03 05:12:11,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:11,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747638110] [2021-11-03 05:12:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:11,859 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:11,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:11,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:11,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:12:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:16,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1594 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:12:16,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:16,475 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 05:12:16,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:16,689 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 05:12:16,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:16,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747638110] [2021-11-03 05:12:16,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747638110] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:16,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:12:16,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:12:16,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858858081] [2021-11-03 05:12:16,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:12:16,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:16,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:12:16,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:12:16,702 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 05:12:16,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:16,750 INFO L93 Difference]: Finished difference Result 368 states and 457 transitions. [2021-11-03 05:12:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:12:16,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 05:12:16,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:16,753 INFO L225 Difference]: With dead ends: 368 [2021-11-03 05:12:16,754 INFO L226 Difference]: Without dead ends: 199 [2021-11-03 05:12:16,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:12:16,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-03 05:12:16,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-03 05:12:16,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 198 states have internal predecessors, (244), 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 05:12:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 244 transitions. [2021-11-03 05:12:16,770 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 244 transitions. Word has length 49 [2021-11-03 05:12:16,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:16,771 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 244 transitions. [2021-11-03 05:12:16,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 05:12:16,771 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 244 transitions. [2021-11-03 05:12:16,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 05:12:16,773 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:16,774 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] [2021-11-03 05:12:16,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:16,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:12:16,986 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:12:16,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:16,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1480006462, now seen corresponding path program 1 times [2021-11-03 05:12:16,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:16,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617830241] [2021-11-03 05:12:16,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:16,992 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:16,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:16,993 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:17,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:12:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:21,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:12:21,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:21,486 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 05:12:21,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:21,695 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 05:12:21,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:21,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617830241] [2021-11-03 05:12:21,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617830241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:21,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:12:21,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 05:12:21,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912238576] [2021-11-03 05:12:21,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:12:21,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:21,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:12:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:12:21,698 INFO L87 Difference]: Start difference. First operand 199 states and 244 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 05:12:21,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:21,784 INFO L93 Difference]: Finished difference Result 371 states and 461 transitions. [2021-11-03 05:12:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:12:21,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 50 [2021-11-03 05:12:21,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:21,787 INFO L225 Difference]: With dead ends: 371 [2021-11-03 05:12:21,788 INFO L226 Difference]: Without dead ends: 202 [2021-11-03 05:12:21,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:12:21,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-03 05:12:21,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-11-03 05:12:21,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 193 states have (on average 1.2797927461139897) internal successors, (247), 201 states have internal predecessors, (247), 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 05:12:21,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2021-11-03 05:12:21,804 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 50 [2021-11-03 05:12:21,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:21,804 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2021-11-03 05:12:21,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 05:12:21,805 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2021-11-03 05:12:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 05:12:21,806 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:21,807 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:21,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:22,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:12:22,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:12:22,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:22,023 INFO L85 PathProgramCache]: Analyzing trace with hash 976047942, now seen corresponding path program 1 times [2021-11-03 05:12:22,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:22,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149527897] [2021-11-03 05:12:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:22,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:22,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:22,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:22,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:12:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:26,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:12:26,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:26,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:26,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:26,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149527897] [2021-11-03 05:12:26,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149527897] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:12:26,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1028800763] [2021-11-03 05:12:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:26,894 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:12:26,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:12:26,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:12:26,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-03 05:12:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:28,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1608 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:12:28,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 05:12:29,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 05:12:29,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1028800763] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:29,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:12:29,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6, 6] total 14 [2021-11-03 05:12:29,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239931791] [2021-11-03 05:12:29,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:12:29,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:29,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:12:29,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:12:29,343 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 05:12:30,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:30,737 INFO L93 Difference]: Finished difference Result 375 states and 457 transitions. [2021-11-03 05:12:30,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:12:30,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 54 [2021-11-03 05:12:30,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:30,742 INFO L225 Difference]: With dead ends: 375 [2021-11-03 05:12:30,742 INFO L226 Difference]: Without dead ends: 240 [2021-11-03 05:12:30,744 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-11-03 05:12:30,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-03 05:12:30,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 202. [2021-11-03 05:12:30,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 193 states have (on average 1.2746113989637307) internal successors, (246), 201 states have internal predecessors, (246), 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 05:12:30,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 246 transitions. [2021-11-03 05:12:30,780 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 246 transitions. Word has length 54 [2021-11-03 05:12:30,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:30,780 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 246 transitions. [2021-11-03 05:12:30,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 05:12:30,781 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 246 transitions. [2021-11-03 05:12:30,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 05:12:30,783 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:30,783 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:30,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 05:12:31,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:31,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:12:31,198 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:12:31,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:31,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1677983956, now seen corresponding path program 1 times [2021-11-03 05:12:31,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:31,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560201276] [2021-11-03 05:12:31,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:31,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:31,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:31,203 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:31,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:12:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:35,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:12:35,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:35,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:35,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:36,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:36,088 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:36,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560201276] [2021-11-03 05:12:36,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560201276] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:12:36,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1913036269] [2021-11-03 05:12:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:36,088 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:12:36,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:12:36,102 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:12:36,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-03 05:12:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:37,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:12:37,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:37,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 05:12:37,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:37,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 05:12:37,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1913036269] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:12:37,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:12:37,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6, 6] total 12 [2021-11-03 05:12:37,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150797914] [2021-11-03 05:12:37,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:12:37,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:37,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:12:37,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:12:37,941 INFO L87 Difference]: Start difference. First operand 202 states and 246 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 05:12:41,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:41,868 INFO L93 Difference]: Finished difference Result 363 states and 454 transitions. [2021-11-03 05:12:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:12:41,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-03 05:12:41,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:41,872 INFO L225 Difference]: With dead ends: 363 [2021-11-03 05:12:41,872 INFO L226 Difference]: Without dead ends: 227 [2021-11-03 05:12:41,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:12:41,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-03 05:12:41,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 212. [2021-11-03 05:12:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 203 states have (on average 1.2610837438423645) internal successors, (256), 211 states have internal predecessors, (256), 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 05:12:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 256 transitions. [2021-11-03 05:12:41,885 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 256 transitions. Word has length 62 [2021-11-03 05:12:41,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:41,886 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 256 transitions. [2021-11-03 05:12:41,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 05:12:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 256 transitions. [2021-11-03 05:12:41,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 05:12:41,888 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:41,888 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:41,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 05:12:42,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-11-03 05:12:42,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:12:42,298 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:12:42,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash 841975978, now seen corresponding path program 1 times [2021-11-03 05:12:42,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:42,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952037378] [2021-11-03 05:12:42,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:42,302 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:42,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:42,303 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:42,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:12:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:46,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 1667 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:12:46,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:46,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:47,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:47,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:12:47,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952037378] [2021-11-03 05:12:47,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952037378] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:12:47,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1947410201] [2021-11-03 05:12:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:47,280 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:12:47,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:12:47,281 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:12:47,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-03 05:12:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:51,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1667 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:12:51,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:51,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:51,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:51,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1947410201] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:12:51,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895620250] [2021-11-03 05:12:51,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:12:51,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:12:51,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:12:51,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:12:51,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 05:12:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:12:53,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1667 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:12:53,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:12:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:53,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:12:54,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:12:54,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895620250] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:12:54,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:12:54,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 7] total 13 [2021-11-03 05:12:54,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60631606] [2021-11-03 05:12:54,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:12:54,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:12:54,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:12:54,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:12:54,310 INFO L87 Difference]: Start difference. First operand 212 states and 256 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:12:54,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:54,775 INFO L93 Difference]: Finished difference Result 399 states and 489 transitions. [2021-11-03 05:12:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:12:54,776 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-03 05:12:54,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:54,778 INFO L225 Difference]: With dead ends: 399 [2021-11-03 05:12:54,778 INFO L226 Difference]: Without dead ends: 220 [2021-11-03 05:12:54,779 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2021-11-03 05:12:54,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-03 05:12:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-11-03 05:12:54,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 211 states have (on average 1.2511848341232228) internal successors, (264), 219 states have internal predecessors, (264), 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 05:12:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 264 transitions. [2021-11-03 05:12:54,793 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 264 transitions. Word has length 62 [2021-11-03 05:12:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:12:54,794 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 264 transitions. [2021-11-03 05:12:54,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:12:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 264 transitions. [2021-11-03 05:12:54,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:12:54,795 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:12:54,796 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:54,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:55,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:55,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:12:55,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:12:55,411 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:12:55,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:12:55,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1027919950, now seen corresponding path program 2 times [2021-11-03 05:12:55,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:12:55,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369834109] [2021-11-03 05:12:55,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:12:55,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:12:55,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:12:55,415 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:12:55,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:13:43,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 05:13:43,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:13:47,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-03 05:13:47,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:13:47,371 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-11-03 05:13:47,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2021-11-03 05:13:47,706 INFO L354 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2021-11-03 05:13:47,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 43 [2021-11-03 05:13:48,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:13:48,694 INFO L354 Elim1Store]: treesize reduction 38, result has 39.7 percent of original size [2021-11-03 05:13:48,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 61 [2021-11-03 05:13:51,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:13:51,533 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-03 05:13:51,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 41 [2021-11-03 05:13:52,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2021-11-03 05:13:52,437 INFO L354 Elim1Store]: treesize reduction 38, result has 43.3 percent of original size [2021-11-03 05:13:52,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 59 [2021-11-03 05:13:53,207 INFO L354 Elim1Store]: treesize reduction 1610, result has 0.6 percent of original size [2021-11-03 05:13:53,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 122 treesize of output 27 [2021-11-03 05:13:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-03 05:13:56,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:13:56,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:13:56,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-11-03 05:14:03,081 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_45| (_ BitVec 64)) (v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_45|))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_45| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_45|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_3) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_4) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_5) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_6) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_7) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_8)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64))))) (not (bvult |c_#StackHeapBarrier| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_45|)))) is different from false [2021-11-03 05:14:35,425 WARN L207 SmtUtils]: Spent 32.28 s on a formula simplification that was a NOOP. DAG size: 2127 [2021-11-03 05:15:52,480 WARN L207 SmtUtils]: Spent 15.79 s on a formula simplification that was a NOOP. DAG size: 1518 [2021-11-03 05:17:52,324 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-03 05:17:52,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:17:52,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369834109] [2021-11-03 05:17:52,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369834109] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:17:52,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:17:52,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 12] imperfect sequences [] total 21 [2021-11-03 05:17:52,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576449101] [2021-11-03 05:17:52,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-03 05:17:52,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:17:52,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-03 05:17:52,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=4, NotChecked=36, Total=420 [2021-11-03 05:17:52,326 INFO L87 Difference]: Start difference. First operand 220 states and 264 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 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 05:19:57,187 WARN L207 SmtUtils]: Spent 1.50 m on a formula simplification. DAG size of input: 148 DAG size of output: 125 [2021-11-03 05:20:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:20:05,332 INFO L93 Difference]: Finished difference Result 414 states and 499 transitions. [2021-11-03 05:20:05,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 05:20:05,335 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 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 70 [2021-11-03 05:20:05,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:20:05,337 INFO L225 Difference]: With dead ends: 414 [2021-11-03 05:20:05,338 INFO L226 Difference]: Without dead ends: 270 [2021-11-03 05:20:05,338 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 108.4s TimeCoverageRelationStatistics Valid=136, Invalid=564, Unknown=6, NotChecked=50, Total=756 [2021-11-03 05:20:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-03 05:20:05,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 218. [2021-11-03 05:20:05,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 209 states have (on average 1.2488038277511961) internal successors, (261), 217 states have internal predecessors, (261), 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 05:20:05,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 261 transitions. [2021-11-03 05:20:05,354 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 261 transitions. Word has length 70 [2021-11-03 05:20:05,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:20:05,354 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 261 transitions. [2021-11-03 05:20:05,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 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 05:20:05,355 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 261 transitions. [2021-11-03 05:20:05,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 05:20:05,356 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:20:05,356 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:20:05,569 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forcibly destroying the process [2021-11-03 05:20:05,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:20:05,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:20:05,624 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:20:05,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:20:05,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2004110374, now seen corresponding path program 1 times [2021-11-03 05:20:05,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:20:05,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172836140] [2021-11-03 05:20:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:20:05,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:20:05,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:20:05,628 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:20:05,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:20:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:20:09,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 05:20:09,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:20:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:20:10,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:20:11,936 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:20:11,936 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:20:11,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172836140] [2021-11-03 05:20:11,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172836140] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:20:11,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1206098600] [2021-11-03 05:20:11,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:20:11,937 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:20:11,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:20:11,944 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:20:11,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-03 05:20:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:20:13,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:20:13,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:20:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-03 05:20:14,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:20:15,179 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-03 05:20:15,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1206098600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:20:15,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:20:15,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [10, 10] total 22 [2021-11-03 05:20:15,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799946327] [2021-11-03 05:20:15,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:20:15,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:20:15,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:20:15,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:20:15,181 INFO L87 Difference]: Start difference. First operand 218 states and 261 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 05:20:31,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:20:31,089 INFO L93 Difference]: Finished difference Result 463 states and 565 transitions. [2021-11-03 05:20:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:20:31,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 72 [2021-11-03 05:20:31,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:20:31,094 INFO L225 Difference]: With dead ends: 463 [2021-11-03 05:20:31,094 INFO L226 Difference]: Without dead ends: 318 [2021-11-03 05:20:31,095 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:20:31,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-11-03 05:20:31,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 225. [2021-11-03 05:20:31,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 216 states have (on average 1.2407407407407407) internal successors, (268), 224 states have internal predecessors, (268), 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 05:20:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 268 transitions. [2021-11-03 05:20:31,112 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 268 transitions. Word has length 72 [2021-11-03 05:20:31,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:20:31,112 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 268 transitions. [2021-11-03 05:20:31,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 05:20:31,113 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 268 transitions. [2021-11-03 05:20:31,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 05:20:31,114 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:20:31,114 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:20:31,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:20:31,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 05:20:31,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:20:31,523 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:20:31,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:20:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1946852072, now seen corresponding path program 1 times [2021-11-03 05:20:31,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:20:31,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908306723] [2021-11-03 05:20:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:20:31,527 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:20:31,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:20:31,527 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:20:31,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:20:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:20:36,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 05:20:36,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:20:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:20:36,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:20:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:20:38,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:20:38,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908306723] [2021-11-03 05:20:38,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908306723] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:20:38,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1211025911] [2021-11-03 05:20:38,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:20:38,016 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:20:38,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:20:38,017 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:20:38,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-03 05:20:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:20:42,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 05:20:42,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:20:42,930 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:20:42,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:20:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:20:43,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1211025911] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:20:43,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901443905] [2021-11-03 05:20:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:20:43,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:20:43,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:20:43,230 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:20:43,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-03 05:20:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:20:45,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 05:20:45,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:20:45,723 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:20:45,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:20:48,313 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:20:48,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901443905] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:20:48,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:20:48,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 11] total 25 [2021-11-03 05:20:48,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241281972] [2021-11-03 05:20:48,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-03 05:20:48,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:20:48,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-03 05:20:48,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-11-03 05:20:48,316 INFO L87 Difference]: Start difference. First operand 225 states and 268 transitions. Second operand has 25 states, 25 states have (on average 4.08) internal successors, (102), 25 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:20:50,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:20:50,095 INFO L93 Difference]: Finished difference Result 425 states and 517 transitions. [2021-11-03 05:20:50,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 05:20:50,095 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.08) internal successors, (102), 25 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-03 05:20:50,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:20:50,097 INFO L225 Difference]: With dead ends: 425 [2021-11-03 05:20:50,097 INFO L226 Difference]: Without dead ends: 241 [2021-11-03 05:20:50,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=341, Invalid=715, Unknown=0, NotChecked=0, Total=1056 [2021-11-03 05:20:50,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-03 05:20:50,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-11-03 05:20:50,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 232 states have (on average 1.2241379310344827) internal successors, (284), 240 states have internal predecessors, (284), 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 05:20:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 284 transitions. [2021-11-03 05:20:50,118 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 284 transitions. Word has length 72 [2021-11-03 05:20:50,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:20:50,119 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 284 transitions. [2021-11-03 05:20:50,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.08) internal successors, (102), 25 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:20:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 284 transitions. [2021-11-03 05:20:50,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-03 05:20:50,120 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:20:50,121 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:20:50,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:20:50,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2021-11-03 05:20:50,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-03 05:20:50,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:20:50,734 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-03 05:20:50,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:20:50,734 INFO L85 PathProgramCache]: Analyzing trace with hash 962909992, now seen corresponding path program 2 times [2021-11-03 05:20:50,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:20:50,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154447688] [2021-11-03 05:20:50,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:20:50,737 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:20:50,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:20:50,738 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:20:50,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9e74f24-67d0-4580-9243-3af146cec4cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process