./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/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_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/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_e5713a83-fcf5-4ef8-9541-4b148bae451e/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 d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:33,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:33,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:33,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:33,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:33,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:33,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:33,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:33,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:33,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:33,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:33,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:33,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:33,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:33,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:33,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:33,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:33,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:33,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:33,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:33,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:33,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:33,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:33,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:33,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:33,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:33,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:33,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:33,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:33,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:33,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:33,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:33,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:33,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:33,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:33,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:33,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:33,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:33,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:33,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:33,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:33,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:41:33,691 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:33,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:33,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:33,693 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:33,694 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:33,694 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:33,694 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:41:33,694 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:33,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:33,695 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:41:33,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:41:33,696 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:33,697 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:41:33,697 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:41:33,697 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:41:33,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:33,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:41:33,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:33,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:33,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:33,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:33,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:33,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:33,701 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:33,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:33,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:33,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:33,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:33,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:33,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:33,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:33,705 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:41:33,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:41:33,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:33,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:33,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:33,707 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd [2021-11-03 05:41:34,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:34,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:34,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:34,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:34,077 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:34,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-03 05:41:34,150 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data/836a51b3d/f42095035d73487ab03aa53ccc2b92c5/FLAG6a75a0429 [2021-11-03 05:41:35,157 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:35,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-03 05:41:35,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data/836a51b3d/f42095035d73487ab03aa53ccc2b92c5/FLAG6a75a0429 [2021-11-03 05:41:35,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data/836a51b3d/f42095035d73487ab03aa53ccc2b92c5 [2021-11-03 05:41:35,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:35,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:35,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:35,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:35,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:35,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:35" (1/1) ... [2021-11-03 05:41:35,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a877598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:35, skipping insertion in model container [2021-11-03 05:41:35,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:35" (1/1) ... [2021-11-03 05:41:35,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:35,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:36,097 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-03 05:41:36,105 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-03 05:41:36,135 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:41:36,143 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:41:37,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:37,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:41:37,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:41:37,697 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:41:37,698 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:41:37,700 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:41:37,700 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:41:37,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:41:37,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:41:37,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:41:37,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:41:37,881 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:41:37,896 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:41:37,907 INFO L168 Benchmark]: Toolchain (without parser) took 2317.70 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 73.1 MB in the beginning and 73.4 MB in the end (delta: -370.5 kB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:41:37,907 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 113.2 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:41:37,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2298.70 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 72.8 MB in the beginning and 73.4 MB in the end (delta: -628.2 kB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:41:37,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 113.2 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2298.70 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 72.8 MB in the beginning and 73.4 MB in the end (delta: -628.2 kB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/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_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/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_e5713a83-fcf5-4ef8-9541-4b148bae451e/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 d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:40,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:40,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:40,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:40,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:40,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:40,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:40,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:40,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:40,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:40,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:40,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:40,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:40,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:40,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:40,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:40,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:40,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:40,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:40,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:40,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:40,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:40,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:40,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:40,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:40,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:40,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:40,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:40,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:40,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:40,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:40,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:40,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:40,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:40,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:40,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:40,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:40,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:40,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:40,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:40,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:40,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:41:40,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:40,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:40,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:40,328 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:40,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:40,328 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:40,328 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:40,328 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:40,329 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:40,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:40,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:40,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:40,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:40,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:40,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:40,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:41:40,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:41:40,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:40,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:40,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:40,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:40,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:41:40,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:40,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:40,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:40,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:40,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:40,334 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:41:40,335 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:40,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:40,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:40,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:40,335 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd [2021-11-03 05:41:40,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:40,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:40,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:40,748 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:40,749 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:40,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-03 05:41:40,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data/8aca14da0/bf243bff5fc6493f9c36b2c51bffdb8d/FLAGa5dd53bea [2021-11-03 05:41:41,707 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:41,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-03 05:41:41,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data/8aca14da0/bf243bff5fc6493f9c36b2c51bffdb8d/FLAGa5dd53bea [2021-11-03 05:41:42,183 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/data/8aca14da0/bf243bff5fc6493f9c36b2c51bffdb8d [2021-11-03 05:41:42,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:42,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:42,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:42,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:42,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:42,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:42" (1/1) ... [2021-11-03 05:41:42,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e26ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:42, skipping insertion in model container [2021-11-03 05:41:42,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:42" (1/1) ... [2021-11-03 05:41:42,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:42,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:42,672 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-03 05:41:42,683 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-03 05:41:42,713 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:41:42,722 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:41:43,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:43,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:43,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:43,623 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:43,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:43,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:43,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:43,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:43,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,057 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:41:44,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:41:44,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:41:44,061 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:41:44,063 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:41:44,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:41:44,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:41:44,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:41:44,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:41:44,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:41:44,258 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:41:44,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:44,596 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:41:44,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:44,670 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-03 05:41:44,670 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-03 05:41:44,673 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:41:44,673 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:41:44,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,729 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:41:44,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:41:44,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:41:44,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:41:44,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:41:44,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:41:44,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:41:44,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:41:44,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:41:44,818 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:41:44,838 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:41:44,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:44,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:45,039 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:41:45,063 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-03 05:41:45,064 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_e5713a83-fcf5-4ef8-9541-4b148bae451e/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-03 05:41:45,066 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:41:45,066 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:41:45,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:41:45,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:41:45,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:41:45,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:41:45,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:41:45,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:41:45,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:41:45,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:41:45,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:41:45,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:41:45,211 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:41:45,269 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:45,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:45,735 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:41:45,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45 WrapperNode [2021-11-03 05:41:45,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:45,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:45,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:41:45,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:41:45,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:45,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:45,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:45,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:41:45,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:41:45,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:41:45,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:45,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:46,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:46,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:46,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:46,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:46,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:46,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:41:46,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:41:46,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:41:46,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:41:46,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (1/1) ... [2021-11-03 05:41:46,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:41:46,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:41:46,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:41:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:41:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:41:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:41:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-03 05:41:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:41:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:41:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:41:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:41:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:41:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:41:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:41:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:41:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:41:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:41:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:41:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:41:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 05:41:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:41:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:41:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:41:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:41:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-03 05:41:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-03 05:41:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-03 05:41:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:41:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:41:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:41:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:42:02,205 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !true; [2021-11-03 05:42:02,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:42:02,213 INFO L299 CfgBuilder]: Removed 92 assume(true) statements. [2021-11-03 05:42:02,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:02 BoogieIcfgContainer [2021-11-03 05:42:02,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:42:02,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:42:02,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:42:02,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:42:02,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:41:42" (1/3) ... [2021-11-03 05:42:02,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641bafc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:02, skipping insertion in model container [2021-11-03 05:42:02,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:45" (2/3) ... [2021-11-03 05:42:02,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641bafc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:02, skipping insertion in model container [2021-11-03 05:42:02,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:02" (3/3) ... [2021-11-03 05:42:02,225 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_c_str_harness.i [2021-11-03 05:42:02,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:42:02,229 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-03 05:42:02,273 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:42:02,278 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 05:42:02,279 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-03 05:42:02,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 99 states have internal predecessors, (130), 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 05:42:02,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 05:42:02,308 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:02,309 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] [2021-11-03 05:42:02,310 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:42:02,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:02,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2038439556, now seen corresponding path program 1 times [2021-11-03 05:42:02,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:02,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005192719] [2021-11-03 05:42:02,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:02,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:02,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:02,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:02,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:42:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:06,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:42:06,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:06,552 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 05:42:06,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:06,704 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 05:42:06,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:06,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005192719] [2021-11-03 05:42:06,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005192719] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:06,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:06,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:42:06,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559509825] [2021-11-03 05:42:06,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:42:06,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:06,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:42:06,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:42:06,728 INFO L87 Difference]: Start difference. First operand has 100 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 99 states have internal predecessors, (130), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 05:42:06,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:06,751 INFO L93 Difference]: Finished difference Result 195 states and 254 transitions. [2021-11-03 05:42:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:42:06,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2021-11-03 05:42:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:06,760 INFO L225 Difference]: With dead ends: 195 [2021-11-03 05:42:06,760 INFO L226 Difference]: Without dead ends: 94 [2021-11-03 05:42:06,763 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 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 05:42:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-03 05:42:06,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-11-03 05:42:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.2183908045977012) internal successors, (106), 93 states have internal predecessors, (106), 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 05:42:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2021-11-03 05:42:06,799 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 28 [2021-11-03 05:42:06,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:06,799 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2021-11-03 05:42:06,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 05:42:06,800 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2021-11-03 05:42:06,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 05:42:06,801 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:06,801 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] [2021-11-03 05:42:06,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:07,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:07,030 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:42:07,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash -194592266, now seen corresponding path program 1 times [2021-11-03 05:42:07,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:07,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9315696] [2021-11-03 05:42:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:07,038 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:07,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:07,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:07,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:42:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:10,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:42:10,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:11,106 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 05:42:11,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:11,219 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 05:42:11,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:11,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9315696] [2021-11-03 05:42:11,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9315696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:11,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:11,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:42:11,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121085126] [2021-11-03 05:42:11,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:42:11,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:11,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:42:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:42:11,222 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 05:42:11,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:11,352 INFO L93 Difference]: Finished difference Result 203 states and 229 transitions. [2021-11-03 05:42:11,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:42:11,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2021-11-03 05:42:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:11,359 INFO L225 Difference]: With dead ends: 203 [2021-11-03 05:42:11,360 INFO L226 Difference]: Without dead ends: 166 [2021-11-03 05:42:11,360 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:42:11,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-03 05:42:11,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 97. [2021-11-03 05:42:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 90 states have (on average 1.211111111111111) internal successors, (109), 96 states have internal predecessors, (109), 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 05:42:11,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2021-11-03 05:42:11,375 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 28 [2021-11-03 05:42:11,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:11,376 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2021-11-03 05:42:11,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 05:42:11,376 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2021-11-03 05:42:11,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 05:42:11,377 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:11,378 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] [2021-11-03 05:42:11,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:11,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:11,590 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:42:11,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:11,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1532971438, now seen corresponding path program 1 times [2021-11-03 05:42:11,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:11,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156526154] [2021-11-03 05:42:11,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:11,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:11,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:11,598 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:11,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:42:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:15,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 1760 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:42:15,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:15,685 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 05:42:15,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:15,789 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 05:42:15,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:15,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156526154] [2021-11-03 05:42:15,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156526154] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:15,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:15,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:42:15,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691081713] [2021-11-03 05:42:15,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:42:15,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:15,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:42:15,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:42:15,792 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 05:42:16,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:16,008 INFO L93 Difference]: Finished difference Result 144 states and 157 transitions. [2021-11-03 05:42:16,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:42:16,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2021-11-03 05:42:16,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:16,011 INFO L225 Difference]: With dead ends: 144 [2021-11-03 05:42:16,011 INFO L226 Difference]: Without dead ends: 110 [2021-11-03 05:42:16,012 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:42:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-03 05:42:16,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2021-11-03 05:42:16,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 93 states have (on average 1.2043010752688172) internal successors, (112), 99 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 05:42:16,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2021-11-03 05:42:16,034 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 30 [2021-11-03 05:42:16,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:16,035 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2021-11-03 05:42:16,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 05:42:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2021-11-03 05:42:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 05:42:16,037 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:16,037 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] [2021-11-03 05:42:16,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:16,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:16,258 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:42:16,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash 62642754, now seen corresponding path program 1 times [2021-11-03 05:42:16,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:16,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233441343] [2021-11-03 05:42:16,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:16,263 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:16,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:16,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:16,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:42:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:20,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 05:42:20,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:20,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:20,756 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 05:42:20,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:20,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233441343] [2021-11-03 05:42:20,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233441343] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:20,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:20,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2021-11-03 05:42:20,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096701557] [2021-11-03 05:42:20,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:42:20,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:20,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:42:20,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:42:20,759 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 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 05:42:21,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:21,421 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2021-11-03 05:42:21,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 05:42:21,422 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 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 32 [2021-11-03 05:42:21,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:21,424 INFO L225 Difference]: With dead ends: 102 [2021-11-03 05:42:21,424 INFO L226 Difference]: Without dead ends: 91 [2021-11-03 05:42:21,425 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-11-03 05:42:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-03 05:42:21,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2021-11-03 05:42:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 87 states have internal predecessors, (97), 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 05:42:21,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2021-11-03 05:42:21,437 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 32 [2021-11-03 05:42:21,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:21,437 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2021-11-03 05:42:21,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 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 05:42:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2021-11-03 05:42:21,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 05:42:21,440 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:21,440 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] [2021-11-03 05:42:21,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:21,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:21,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:42:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:21,661 INFO L85 PathProgramCache]: Analyzing trace with hash -359067237, now seen corresponding path program 1 times [2021-11-03 05:42:21,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:21,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574853731] [2021-11-03 05:42:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:21,665 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:21,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:21,666 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:21,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:42:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:26,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:42:26,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:26,360 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 05:42:26,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:26,571 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 05:42:26,571 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:26,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574853731] [2021-11-03 05:42:26,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574853731] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:26,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:26,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:42:26,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068892191] [2021-11-03 05:42:26,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:42:26,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:26,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:42:26,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:42:26,574 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 05:42:26,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:26,726 INFO L93 Difference]: Finished difference Result 234 states and 262 transitions. [2021-11-03 05:42:26,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:42:26,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 48 [2021-11-03 05:42:26,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:26,729 INFO L225 Difference]: With dead ends: 234 [2021-11-03 05:42:26,729 INFO L226 Difference]: Without dead ends: 187 [2021-11-03 05:42:26,730 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:42:26,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-03 05:42:26,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 91. [2021-11-03 05:42:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 90 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2021-11-03 05:42:26,743 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 48 [2021-11-03 05:42:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:26,744 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2021-11-03 05:42:26,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 05:42:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2021-11-03 05:42:26,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 05:42:26,746 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:26,746 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:26,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:26,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:26,970 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:42:26,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:26,970 INFO L85 PathProgramCache]: Analyzing trace with hash -762261897, now seen corresponding path program 1 times [2021-11-03 05:42:26,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:26,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948203980] [2021-11-03 05:42:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:26,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:26,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:26,977 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:26,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:42:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:31,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 05:42:31,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:32,236 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 05:42:32,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:32,520 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 05:42:32,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:32,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948203980] [2021-11-03 05:42:32,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948203980] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:32,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:32,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 05:42:32,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705389288] [2021-11-03 05:42:32,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:42:32,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:32,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:42:32,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:42:32,522 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 05:42:33,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:33,044 INFO L93 Difference]: Finished difference Result 143 states and 158 transitions. [2021-11-03 05:42:33,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:42:33,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 05:42:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:33,046 INFO L225 Difference]: With dead ends: 143 [2021-11-03 05:42:33,046 INFO L226 Difference]: Without dead ends: 86 [2021-11-03 05:42:33,047 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:42:33,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-03 05:42:33,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-03 05:42:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.1625) internal successors, (93), 85 states have internal predecessors, (93), 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 05:42:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2021-11-03 05:42:33,064 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 50 [2021-11-03 05:42:33,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:33,064 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2021-11-03 05:42:33,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 05:42:33,065 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2021-11-03 05:42:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 05:42:33,071 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:33,071 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] [2021-11-03 05:42:33,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:33,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:33,295 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-03 05:42:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:33,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2087599505, now seen corresponding path program 1 times [2021-11-03 05:42:33,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:33,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171864054] [2021-11-03 05:42:33,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:33,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:33,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:33,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:33,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5713a83-fcf5-4ef8-9541-4b148bae451e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:42:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:38,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-03 05:42:38,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:39,942 INFO L354 Elim1Store]: treesize reduction 1127, result has 7.4 percent of original size [2021-11-03 05:42:39,942 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 7 case distinctions, treesize of input 78 treesize of output 103 [2021-11-03 05:42:40,818 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-03 05:42:40,818 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 166 treesize of output 74 [2021-11-03 05:42:41,969 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 05:42:41,969 INFO L328 TraceCheckSpWp]: Computing backward predicates...