./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.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_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/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_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/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_11393331-0d35-49df-9773-ea4dc1cac6f1/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 cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:31:28,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:31:28,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:31:28,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:31:28,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:31:28,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:31:28,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:31:28,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:31:28,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:31:28,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:31:28,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:31:28,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:31:28,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:31:28,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:31:28,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:31:28,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:31:28,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:31:28,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:31:28,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:31:28,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:31:28,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:31:28,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:31:28,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:31:28,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:31:28,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:31:28,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:31:28,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:31:28,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:31:28,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:31:28,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:31:28,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:31:28,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:31:28,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:31:28,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:31:28,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:31:28,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:31:28,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:31:28,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:31:28,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:31:28,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:31:28,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:31:28,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:31:28,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:31:28,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:31:28,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:31:28,396 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:31:28,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:31:28,396 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:31:28,396 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:31:28,397 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:31:28,397 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:31:28,397 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:31:28,397 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:31:28,397 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:31:28,398 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:31:28,398 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:31:28,398 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:31:28,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:31:28,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:31:28,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:31:28,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:31:28,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:31:28,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:31:28,400 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:31:28,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:31:28,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:31:28,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:31:28,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:31:28,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:31:28,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:31:28,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:31:28,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:31:28,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:31:28,402 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:31:28,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:31:28,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:31:28,403 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:31:28,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:31:28,403 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_11393331-0d35-49df-9773-ea4dc1cac6f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb [2021-11-03 05:31:28,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:31:28,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:31:28,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:31:28,735 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:31:28,737 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:31:28,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i [2021-11-03 05:31:28,806 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data/cfae1ac9e/50de72c1b0a644c6b0cfdc34d9eadec6/FLAG1d19f9136 [2021-11-03 05:31:29,760 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:31:29,761 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i [2021-11-03 05:31:29,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data/cfae1ac9e/50de72c1b0a644c6b0cfdc34d9eadec6/FLAG1d19f9136 [2021-11-03 05:31:30,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data/cfae1ac9e/50de72c1b0a644c6b0cfdc34d9eadec6 [2021-11-03 05:31:30,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:31:30,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:31:30,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:31:30,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:31:30,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:31:30,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:31:30" (1/1) ... [2021-11-03 05:31:30,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d45407f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:30, skipping insertion in model container [2021-11-03 05:31:30,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:31:30" (1/1) ... [2021-11-03 05:31:30,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:31:30,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:31:30,711 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_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4510,4523] [2021-11-03 05:31:30,722 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_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4570,4583] [2021-11-03 05:31:30,753 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:31:30,770 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:31:31,836 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:31,837 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:31,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:31,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:31,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:31,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:31,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:31,876 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:31,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:32,325 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:31:32,327 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:31:32,328 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:31:32,329 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:31:32,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:31:32,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:31:32,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:31:32,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:31:32,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:31:32,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:31:32,534 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:31:32,557 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:31:32,567 INFO L168 Benchmark]: Toolchain (without parser) took 2346.37 ms. Allocated memory was 117.4 MB in the beginning and 146.8 MB in the end (delta: 29.4 MB). Free memory was 76.6 MB in the beginning and 84.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:31:32,569 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 117.4 MB. Free memory was 69.5 MB in the beginning and 69.5 MB in the end (delta: 14.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:31:32,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2343.08 ms. Allocated memory was 117.4 MB in the beginning and 146.8 MB in the end (delta: 29.4 MB). Free memory was 76.3 MB in the beginning and 84.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:31:32,574 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 117.4 MB. Free memory was 69.5 MB in the beginning and 69.5 MB in the end (delta: 14.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2343.08 ms. Allocated memory was 117.4 MB in the beginning and 146.8 MB in the end (delta: 29.4 MB). Free memory was 76.3 MB in the beginning and 84.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 23.4 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_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/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_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/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_11393331-0d35-49df-9773-ea4dc1cac6f1/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 cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:31:35,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:31:35,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:31:35,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:31:35,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:31:35,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:31:35,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:31:35,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:31:35,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:31:35,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:31:35,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:31:35,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:31:35,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:31:35,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:31:35,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:31:35,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:31:35,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:31:35,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:31:35,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:31:35,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:31:35,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:31:35,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:31:35,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:31:35,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:31:35,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:31:35,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:31:35,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:31:35,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:31:35,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:31:35,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:31:35,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:31:35,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:31:35,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:31:35,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:31:35,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:31:35,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:31:35,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:31:35,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:31:35,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:31:35,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:31:35,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:31:35,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:31:35,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:31:35,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:31:35,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:31:35,222 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:31:35,222 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:31:35,222 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:31:35,222 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:31:35,222 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:31:35,223 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:31:35,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:31:35,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:31:35,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:31:35,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:31:35,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:31:35,226 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:31:35,226 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:31:35,226 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:31:35,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:31:35,227 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:31:35,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:31:35,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:31:35,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:31:35,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:31:35,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:31:35,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:31:35,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:31:35,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:31:35,228 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:31:35,229 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:31:35,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:31:35,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:31:35,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:31:35,229 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb [2021-11-03 05:31:35,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:31:35,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:31:35,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:31:35,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:31:35,652 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:31:35,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i [2021-11-03 05:31:35,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data/8f26420f2/a84b44f7f81741f592e9055850ea6f15/FLAG0283ff78e [2021-11-03 05:31:36,898 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:31:36,898 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i [2021-11-03 05:31:36,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data/8f26420f2/a84b44f7f81741f592e9055850ea6f15/FLAG0283ff78e [2021-11-03 05:31:37,307 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/data/8f26420f2/a84b44f7f81741f592e9055850ea6f15 [2021-11-03 05:31:37,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:31:37,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:31:37,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:31:37,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:31:37,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:31:37,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:31:37" (1/1) ... [2021-11-03 05:31:37,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a763a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:37, skipping insertion in model container [2021-11-03 05:31:37,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:31:37" (1/1) ... [2021-11-03 05:31:37,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:31:37,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:31:37,804 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_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4510,4523] [2021-11-03 05:31:37,812 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_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4570,4583] [2021-11-03 05:31:37,847 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:31:37,855 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:31:39,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,014 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,031 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,506 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:31:39,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:31:39,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:31:39,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:31:39,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:31:39,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:31:39,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:31:39,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:31:39,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:31:39,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:31:39,751 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:31:39,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:39,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:31:40,052 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:31:40,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:31:40,121 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_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4510,4523] [2021-11-03 05:31:40,121 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_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4570,4583] [2021-11-03 05:31:40,122 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:31:40,123 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:31:40,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,197 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,264 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:31:40,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:31:40,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:31:40,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:31:40,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:31:40,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:31:40,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:31:40,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:31:40,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:31:40,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:31:40,307 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:31:40,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:31:40,515 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:31:40,541 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_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4510,4523] [2021-11-03 05:31:40,542 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_11393331-0d35-49df-9773-ea4dc1cac6f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i[4570,4583] [2021-11-03 05:31:40,543 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:31:40,544 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:31:40,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:31:40,611 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:31:40,611 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:31:40,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:31:40,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:31:40,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:31:40,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:31:40,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:31:40,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:31:40,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:31:40,643 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:31:40,714 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:31:40,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:31:41,047 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:31:41,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41 WrapperNode [2021-11-03 05:31:41,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:31:41,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:31:41,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:31:41,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:31:41,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:31:41,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:31:41,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:31:41,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:31:41,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:31:41,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:31:41,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:31:41,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:31:41,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (1/1) ... [2021-11-03 05:31:41,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:31:41,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:31:41,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:31:41,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:31:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:31:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:31:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:31:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:31:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:31:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:31:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:31:41,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:31:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:31:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:31:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:31:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:31:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:31:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:31:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:31:58,826 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:31:58,826 INFO L299 CfgBuilder]: Removed 151 assume(true) statements. [2021-11-03 05:31:58,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:31:58 BoogieIcfgContainer [2021-11-03 05:31:58,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:31:58,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:31:58,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:31:58,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:31:58,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:31:37" (1/3) ... [2021-11-03 05:31:58,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaeed2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:31:58, skipping insertion in model container [2021-11-03 05:31:58,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:31:41" (2/3) ... [2021-11-03 05:31:58,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaeed2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:31:58, skipping insertion in model container [2021-11-03 05:31:58,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:31:58" (3/3) ... [2021-11-03 05:31:58,839 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_buffer_harness-1.i [2021-11-03 05:31:58,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:31:58,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-03 05:31:58,911 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:31:58,916 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 05:31:58,917 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-03 05:31:58,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 297 states, 277 states have (on average 1.4873646209386282) internal successors, (412), 296 states have internal predecessors, (412), 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 05:31:58,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 05:31:58,948 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:31:58,949 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:31:58,950 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:31:58,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:31:58,955 INFO L85 PathProgramCache]: Analyzing trace with hash 28296255, now seen corresponding path program 1 times [2021-11-03 05:31:58,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:31:58,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483897610] [2021-11-03 05:31:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:31:58,977 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:31:58,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:31:58,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:31:59,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:32:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:03,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1980 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:32:03,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:03,550 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 05:32:03,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:03,738 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 05:32:03,739 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:03,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483897610] [2021-11-03 05:32:03,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483897610] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:03,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:03,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:32:03,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954529686] [2021-11-03 05:32:03,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:32:03,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:03,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:32:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:32:03,763 INFO L87 Difference]: Start difference. First operand has 297 states, 277 states have (on average 1.4873646209386282) internal successors, (412), 296 states have internal predecessors, (412), 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 32.0) internal successors, (64), 2 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 05:32:03,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:03,810 INFO L93 Difference]: Finished difference Result 586 states and 815 transitions. [2021-11-03 05:32:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:32:03,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 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 64 [2021-11-03 05:32:03,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:03,824 INFO L225 Difference]: With dead ends: 586 [2021-11-03 05:32:03,824 INFO L226 Difference]: Without dead ends: 290 [2021-11-03 05:32:03,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 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 05:32:03,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-03 05:32:03,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2021-11-03 05:32:03,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 271 states have (on average 1.3505535055350553) internal successors, (366), 289 states have internal predecessors, (366), 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 05:32:03,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 366 transitions. [2021-11-03 05:32:03,886 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 366 transitions. Word has length 64 [2021-11-03 05:32:03,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:03,886 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 366 transitions. [2021-11-03 05:32:03,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 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 05:32:03,887 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 366 transitions. [2021-11-03 05:32:03,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 05:32:03,890 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:03,890 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:03,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:32:04,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:04,112 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:32:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:04,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1015264321, now seen corresponding path program 1 times [2021-11-03 05:32:04,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:04,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006251483] [2021-11-03 05:32:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:04,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:04,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:04,124 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:04,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:32:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:08,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1980 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:32:08,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:32:08,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:09,319 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 05:32:09,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:09,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006251483] [2021-11-03 05:32:09,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006251483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:09,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:09,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:32:09,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620154364] [2021-11-03 05:32:09,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:32:09,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:32:09,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:09,324 INFO L87 Difference]: Start difference. First operand 290 states and 366 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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 05:32:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:11,877 INFO L93 Difference]: Finished difference Result 550 states and 694 transitions. [2021-11-03 05:32:11,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:32:11,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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 64 [2021-11-03 05:32:11,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:11,880 INFO L225 Difference]: With dead ends: 550 [2021-11-03 05:32:11,881 INFO L226 Difference]: Without dead ends: 290 [2021-11-03 05:32:11,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:32:11,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-03 05:32:11,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2021-11-03 05:32:11,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 271 states have (on average 1.3468634686346863) internal successors, (365), 289 states have internal predecessors, (365), 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 05:32:11,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 365 transitions. [2021-11-03 05:32:11,914 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 365 transitions. Word has length 64 [2021-11-03 05:32:11,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:11,915 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 365 transitions. [2021-11-03 05:32:11,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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 05:32:11,915 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 365 transitions. [2021-11-03 05:32:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:32:11,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:11,918 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:11,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:12,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:12,119 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:32:12,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:12,120 INFO L85 PathProgramCache]: Analyzing trace with hash -378357780, now seen corresponding path program 1 times [2021-11-03 05:32:12,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:12,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304019039] [2021-11-03 05:32:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:12,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:12,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:12,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:12,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:32:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:16,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:32:16,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:16,974 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 05:32:16,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:17,255 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 05:32:17,255 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:17,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304019039] [2021-11-03 05:32:17,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304019039] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:17,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:17,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:32:17,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438338351] [2021-11-03 05:32:17,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:32:17,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:17,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:32:17,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:17,257 INFO L87 Difference]: Start difference. First operand 290 states and 365 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 05:32:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:22,060 INFO L93 Difference]: Finished difference Result 757 states and 985 transitions. [2021-11-03 05:32:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:32:22,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 05:32:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:22,064 INFO L225 Difference]: With dead ends: 757 [2021-11-03 05:32:22,065 INFO L226 Difference]: Without dead ends: 488 [2021-11-03 05:32:22,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:32:22,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-03 05:32:22,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 308. [2021-11-03 05:32:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 289 states have (on average 1.3252595155709344) internal successors, (383), 307 states have internal predecessors, (383), 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 05:32:22,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 383 transitions. [2021-11-03 05:32:22,087 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 383 transitions. Word has length 70 [2021-11-03 05:32:22,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:22,088 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 383 transitions. [2021-11-03 05:32:22,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 05:32:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 383 transitions. [2021-11-03 05:32:22,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:32:22,091 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:22,091 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:32:22,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:22,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:22,309 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:32:22,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:22,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1888023406, now seen corresponding path program 1 times [2021-11-03 05:32:22,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:22,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101447826] [2021-11-03 05:32:22,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:22,314 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:22,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:22,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:22,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:32:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:26,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 1988 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:32:26,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:27,085 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 05:32:27,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:27,377 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 05:32:27,377 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:27,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101447826] [2021-11-03 05:32:27,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101447826] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:27,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:27,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:32:27,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702251020] [2021-11-03 05:32:27,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:32:27,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:27,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:32:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:32:27,379 INFO L87 Difference]: Start difference. First operand 308 states and 383 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 05:32:34,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:34,698 INFO L93 Difference]: Finished difference Result 765 states and 980 transitions. [2021-11-03 05:32:34,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:32:34,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 05:32:34,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:34,702 INFO L225 Difference]: With dead ends: 765 [2021-11-03 05:32:34,702 INFO L226 Difference]: Without dead ends: 488 [2021-11-03 05:32:34,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:32:34,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-03 05:32:34,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 326. [2021-11-03 05:32:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 307 states have (on average 1.3061889250814331) internal successors, (401), 325 states have internal predecessors, (401), 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 05:32:34,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 401 transitions. [2021-11-03 05:32:34,720 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 401 transitions. Word has length 70 [2021-11-03 05:32:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:34,720 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 401 transitions. [2021-11-03 05:32:34,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 05:32:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 401 transitions. [2021-11-03 05:32:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:32:34,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:34,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:34,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:34,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:34,948 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:32:34,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:34,949 INFO L85 PathProgramCache]: Analyzing trace with hash -822258454, now seen corresponding path program 1 times [2021-11-03 05:32:34,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:34,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031175386] [2021-11-03 05:32:34,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:34,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:34,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:34,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:34,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:32:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:39,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:32:39,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:39,568 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 18 treesize of output 14 [2021-11-03 05:32:40,034 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 05:32:40,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:40,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 05:32:40,742 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 05:32:40,743 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:40,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031175386] [2021-11-03 05:32:40,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031175386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:40,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:40,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 05:32:40,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231461023] [2021-11-03 05:32:40,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:32:40,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:40,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:32:40,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:32:40,745 INFO L87 Difference]: Start difference. First operand 326 states and 401 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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 05:32:50,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:50,235 INFO L93 Difference]: Finished difference Result 683 states and 850 transitions. [2021-11-03 05:32:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 05:32:50,237 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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 05:32:50,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:50,240 INFO L225 Difference]: With dead ends: 683 [2021-11-03 05:32:50,240 INFO L226 Difference]: Without dead ends: 390 [2021-11-03 05:32:50,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:32:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-03 05:32:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 324. [2021-11-03 05:32:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 305 states have (on average 1.3049180327868852) internal successors, (398), 323 states have internal predecessors, (398), 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 05:32:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 398 transitions. [2021-11-03 05:32:50,254 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 398 transitions. Word has length 70 [2021-11-03 05:32:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:50,254 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 398 transitions. [2021-11-03 05:32:50,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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 05:32:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 398 transitions. [2021-11-03 05:32:50,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 05:32:50,257 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:50,258 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:50,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:50,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:50,480 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:32:50,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:50,481 INFO L85 PathProgramCache]: Analyzing trace with hash -669816458, now seen corresponding path program 1 times [2021-11-03 05:32:50,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:50,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499497846] [2021-11-03 05:32:50,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:50,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:50,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:50,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:50,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:32:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:54,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:32:54,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:55,099 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 05:32:55,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:55,375 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 05:32:55,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:55,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499497846] [2021-11-03 05:32:55,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499497846] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:55,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:55,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 05:32:55,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290325943] [2021-11-03 05:32:55,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:32:55,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:55,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:32:55,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:32:55,378 INFO L87 Difference]: Start difference. First operand 324 states and 398 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 05:33:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:04,981 INFO L93 Difference]: Finished difference Result 754 states and 902 transitions. [2021-11-03 05:33:04,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:33:04,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 74 [2021-11-03 05:33:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:04,985 INFO L225 Difference]: With dead ends: 754 [2021-11-03 05:33:04,985 INFO L226 Difference]: Without dead ends: 436 [2021-11-03 05:33:04,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:33:04,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-11-03 05:33:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 324. [2021-11-03 05:33:04,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 305 states have (on average 1.2754098360655737) internal successors, (389), 323 states have internal predecessors, (389), 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 05:33:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 389 transitions. [2021-11-03 05:33:05,000 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 389 transitions. Word has length 74 [2021-11-03 05:33:05,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:05,001 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 389 transitions. [2021-11-03 05:33:05,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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 05:33:05,001 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 389 transitions. [2021-11-03 05:33:05,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-03 05:33:05,003 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:05,003 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:05,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:05,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:05,216 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:33:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash 861015707, now seen corresponding path program 1 times [2021-11-03 05:33:05,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:05,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050040890] [2021-11-03 05:33:05,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:05,221 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:05,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:05,222 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:05,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:33:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:09,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 2053 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:33:09,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:10,190 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 18 treesize of output 14 [2021-11-03 05:33:10,723 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 05:33:10,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:11,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 05:33:11,481 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 05:33:11,481 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:11,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050040890] [2021-11-03 05:33:11,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050040890] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:11,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:11,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 05:33:11,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115049447] [2021-11-03 05:33:11,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:33:11,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:33:11,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:33:11,484 INFO L87 Difference]: Start difference. First operand 324 states and 389 transitions. Second operand has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 13 states have internal predecessors, (144), 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 05:33:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:24,597 INFO L93 Difference]: Finished difference Result 655 states and 795 transitions. [2021-11-03 05:33:24,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 05:33:24,598 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 13 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-03 05:33:24,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:24,601 INFO L225 Difference]: With dead ends: 655 [2021-11-03 05:33:24,602 INFO L226 Difference]: Without dead ends: 394 [2021-11-03 05:33:24,603 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-11-03 05:33:24,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-03 05:33:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 322. [2021-11-03 05:33:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 303 states have (on average 1.273927392739274) internal successors, (386), 321 states have internal predecessors, (386), 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 05:33:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 386 transitions. [2021-11-03 05:33:24,640 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 386 transitions. Word has length 100 [2021-11-03 05:33:24,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:24,640 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 386 transitions. [2021-11-03 05:33:24,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 13 states have internal predecessors, (144), 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 05:33:24,641 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 386 transitions. [2021-11-03 05:33:24,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 05:33:24,642 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:24,642 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:24,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:24,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:24,856 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:33:24,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash -687621844, now seen corresponding path program 1 times [2021-11-03 05:33:24,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:24,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154463878] [2021-11-03 05:33:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:24,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:24,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:24,861 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:24,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:33:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:29,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 2063 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:33:29,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:29,827 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:33:29,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:33:30,125 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 05:33:30,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:30,846 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 05:33:30,846 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:30,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154463878] [2021-11-03 05:33:30,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154463878] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:30,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:30,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:33:30,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296803029] [2021-11-03 05:33:30,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:33:30,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:30,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:33:30,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:33:30,849 INFO L87 Difference]: Start difference. First operand 322 states and 386 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 05:33:46,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:46,840 INFO L93 Difference]: Finished difference Result 927 states and 1098 transitions. [2021-11-03 05:33:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:33:46,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 106 [2021-11-03 05:33:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:46,847 INFO L225 Difference]: With dead ends: 927 [2021-11-03 05:33:46,847 INFO L226 Difference]: Without dead ends: 631 [2021-11-03 05:33:46,848 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:33:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-11-03 05:33:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 349. [2021-11-03 05:33:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 330 states have (on average 1.2515151515151515) internal successors, (413), 348 states have internal predecessors, (413), 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 05:33:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 413 transitions. [2021-11-03 05:33:46,864 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 413 transitions. Word has length 106 [2021-11-03 05:33:46,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:46,865 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 413 transitions. [2021-11-03 05:33:46,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 05:33:46,865 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 413 transitions. [2021-11-03 05:33:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 05:33:46,867 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:46,867 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:46,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:47,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:47,080 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:33:47,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:47,081 INFO L85 PathProgramCache]: Analyzing trace with hash 573295406, now seen corresponding path program 1 times [2021-11-03 05:33:47,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:47,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393572116] [2021-11-03 05:33:47,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:47,084 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:47,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:47,087 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:47,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:33:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:51,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 2060 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:33:51,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:52,064 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:33:52,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:33:52,396 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 05:33:52,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:53,131 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 05:33:53,131 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:53,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393572116] [2021-11-03 05:33:53,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393572116] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:53,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:53,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 05:33:53,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419490277] [2021-11-03 05:33:53,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:33:53,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:33:53,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:33:53,134 INFO L87 Difference]: Start difference. First operand 349 states and 413 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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 05:34:09,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:34:09,008 INFO L93 Difference]: Finished difference Result 876 states and 1017 transitions. [2021-11-03 05:34:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 05:34:09,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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 106 [2021-11-03 05:34:09,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:34:09,015 INFO L225 Difference]: With dead ends: 876 [2021-11-03 05:34:09,015 INFO L226 Difference]: Without dead ends: 519 [2021-11-03 05:34:09,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:34:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2021-11-03 05:34:09,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 338. [2021-11-03 05:34:09,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 319 states have (on average 1.213166144200627) internal successors, (387), 337 states have internal predecessors, (387), 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 05:34:09,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 387 transitions. [2021-11-03 05:34:09,029 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 387 transitions. Word has length 106 [2021-11-03 05:34:09,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:34:09,029 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 387 transitions. [2021-11-03 05:34:09,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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 05:34:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 387 transitions. [2021-11-03 05:34:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 05:34:09,031 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:09,031 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:34:09,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:34:09,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:34:09,244 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-03 05:34:09,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:09,245 INFO L85 PathProgramCache]: Analyzing trace with hash -8349590, now seen corresponding path program 1 times [2021-11-03 05:34:09,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:09,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305070041] [2021-11-03 05:34:09,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:09,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:09,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:09,251 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:09,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11393331-0d35-49df-9773-ea4dc1cac6f1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:34:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:14,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-03 05:34:14,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:34:18,215 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-03 05:34:18,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 304 treesize of output 112 [2021-11-03 05:34:18,440 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 05:34:18,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:34:51,314 WARN L207 SmtUtils]: Spent 29.50 s on a formula simplification. DAG size of input: 1166 DAG size of output: 314 [2021-11-03 05:34:51,319 INFO L354 Elim1Store]: treesize reduction 2882, result has 23.2 percent of original size [2021-11-03 05:34:51,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 193 treesize of output 923