./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/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 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:43:55,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:43:55,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:43:55,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:43:55,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:43:55,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:43:55,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:43:55,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:43:55,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:43:55,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:43:55,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:43:55,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:43:55,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:43:55,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:43:55,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:43:55,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:43:55,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:43:55,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:43:55,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:43:55,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:43:55,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:43:55,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:43:55,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:43:55,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:43:55,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:43:55,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:43:55,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:43:55,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:43:55,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:43:55,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:43:55,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:43:55,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:43:55,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:43:55,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:43:55,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:43:55,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:43:55,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:43:55,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:43:55,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:43:55,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:43:55,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:43:55,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:43:55,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:43:55,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:43:55,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:43:55,626 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:43:55,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:43:55,626 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:43:55,627 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:43:55,627 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:43:55,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:43:55,628 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:43:55,628 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:43:55,628 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:43:55,629 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:43:55,629 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:43:55,629 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:43:55,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:43:55,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:43:55,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:43:55,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:43:55,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:43:55,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:43:55,632 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:43:55,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:43:55,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:43:55,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:43:55,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:43:55,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:43:55,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:43:55,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:43:55,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:43:55,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:43:55,635 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:43:55,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:43:55,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:43:55,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:43:55,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:43:55,636 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2021-11-03 05:43:55,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:43:55,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:43:55,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:43:55,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:43:55,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:43:55,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2021-11-03 05:43:56,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data/01e789de6/01dcd77e83a1460cb167e52cfd546e90/FLAG16f68bf5d [2021-11-03 05:43:56,979 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:43:56,980 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2021-11-03 05:43:57,028 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data/01e789de6/01dcd77e83a1460cb167e52cfd546e90/FLAG16f68bf5d [2021-11-03 05:43:57,407 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data/01e789de6/01dcd77e83a1460cb167e52cfd546e90 [2021-11-03 05:43:57,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:43:57,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:43:57,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:43:57,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:43:57,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:43:57,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:57" (1/1) ... [2021-11-03 05:43:57,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd95016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:57, skipping insertion in model container [2021-11-03 05:43:57,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:57" (1/1) ... [2021-11-03 05:43:57,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:43:57,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:43:57,878 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2021-11-03 05:43:57,888 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2021-11-03 05:43:57,917 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:43:57,932 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:43:59,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,090 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,091 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:43:59,504 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:43:59,505 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:43:59,506 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:43:59,507 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:43:59,510 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:43:59,511 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:43:59,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:43:59,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:43:59,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:43:59,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:43:59,682 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:43:59,728 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:43:59,734 INFO L168 Benchmark]: Toolchain (without parser) took 2322.04 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 70.3 MB in the beginning and 100.9 MB in the end (delta: -30.6 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:43:59,735 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory is still 74.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:43:59,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2317.35 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 70.1 MB in the beginning and 100.9 MB in the end (delta: -30.9 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:43:59,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory is still 74.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2317.35 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 70.1 MB in the beginning and 100.9 MB in the end (delta: -30.9 MB). Peak memory consumption was 36.1 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/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 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:44:01,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:44:01,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:44:01,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:44:01,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:44:01,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:44:01,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:44:01,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:44:01,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:44:02,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:44:02,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:44:02,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:44:02,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:44:02,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:44:02,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:44:02,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:44:02,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:44:02,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:44:02,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:44:02,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:44:02,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:44:02,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:44:02,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:44:02,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:44:02,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:44:02,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:44:02,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:44:02,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:44:02,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:44:02,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:44:02,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:44:02,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:44:02,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:44:02,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:44:02,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:44:02,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:44:02,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:44:02,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:44:02,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:44:02,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:44:02,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:44:02,070 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:44:02,114 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:44:02,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:44:02,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:44:02,116 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:44:02,116 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:44:02,116 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:44:02,117 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:44:02,117 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:44:02,117 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:44:02,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:44:02,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:44:02,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:44:02,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:44:02,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:44:02,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:44:02,121 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:44:02,121 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:44:02,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:44:02,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:44:02,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:44:02,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:44:02,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:44:02,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:44:02,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:44:02,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:44:02,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:44:02,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:44:02,124 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:44:02,124 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:44:02,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:44:02,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:44:02,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:44:02,125 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2021-11-03 05:44:02,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:44:02,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:44:02,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:44:02,577 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:44:02,578 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:44:02,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2021-11-03 05:44:02,648 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data/ff81af369/1a84118ed5fd4e12ad19d660e12cbcfb/FLAGae3ba2c12 [2021-11-03 05:44:03,539 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:44:03,540 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2021-11-03 05:44:03,592 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data/ff81af369/1a84118ed5fd4e12ad19d660e12cbcfb/FLAGae3ba2c12 [2021-11-03 05:44:03,986 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/data/ff81af369/1a84118ed5fd4e12ad19d660e12cbcfb [2021-11-03 05:44:03,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:44:03,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:44:03,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:03,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:44:04,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:44:04,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:03" (1/1) ... [2021-11-03 05:44:04,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6487ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:04, skipping insertion in model container [2021-11-03 05:44:04,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:03" (1/1) ... [2021-11-03 05:44:04,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:44:04,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:44:04,453 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2021-11-03 05:44:04,463 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2021-11-03 05:44:04,496 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:44:04,511 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:44:05,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:05,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:05,657 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:05,659 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:05,660 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:05,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:05,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:05,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:05,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,126 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:44:06,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:44:06,128 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:44:06,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:44:06,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:44:06,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:44:06,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:44:06,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:44:06,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:44:06,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:44:06,322 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:44:06,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:44:06,700 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:44:06,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:44:06,773 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2021-11-03 05:44:06,773 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2021-11-03 05:44:06,775 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:44:06,776 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:44:06,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,836 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,837 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:06,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:44:06,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:44:06,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:44:06,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:44:06,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:44:06,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:44:06,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:44:06,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:44:06,947 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:44:06,947 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:44:06,979 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:44:07,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:44:07,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:44:07,183 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2021-11-03 05:44:07,184 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_dac330c5-ce28-4ab0-85a0-26ba14fbffed/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2021-11-03 05:44:07,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:44:07,186 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:44:07,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,237 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,238 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,304 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:44:07,305 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:44:07,305 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:44:07,306 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:44:07,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:44:07,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:44:07,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:44:07,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:44:07,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:44:07,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:44:07,330 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:44:07,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:44:07,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:44:07,755 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:44:07,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07 WrapperNode [2021-11-03 05:44:07,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:07,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:44:07,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:44:07,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:44:07,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:07,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:44:08,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:44:08,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:44:08,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:44:08,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:44:08,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:44:08,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:44:08,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:44:08,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (1/1) ... [2021-11-03 05:44:08,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:44:08,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:44:08,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:44:08,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:44:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 05:44:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:44:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:44:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:44:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:44:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:44:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:44:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:44:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:44:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:44:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:44:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:44:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:44:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:44:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:44:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:44:22,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:44:22,769 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-11-03 05:44:22,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:44:22 BoogieIcfgContainer [2021-11-03 05:44:22,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:44:22,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:44:22,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:44:22,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:44:22,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:44:03" (1/3) ... [2021-11-03 05:44:22,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686b172b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:44:22, skipping insertion in model container [2021-11-03 05:44:22,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:07" (2/3) ... [2021-11-03 05:44:22,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686b172b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:44:22, skipping insertion in model container [2021-11-03 05:44:22,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:44:22" (3/3) ... [2021-11-03 05:44:22,779 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2021-11-03 05:44:22,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:44:22,784 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-03 05:44:22,846 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:44:22,864 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 05:44:22,864 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-03 05:44:22,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 224 states, 210 states have (on average 1.480952380952381) internal successors, (311), 223 states have internal predecessors, (311), 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 05:44:22,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 05:44:22,889 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:22,890 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:22,890 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:44:22,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:22,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1810806174, now seen corresponding path program 1 times [2021-11-03 05:44:22,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:22,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564467883] [2021-11-03 05:44:22,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:22,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:22,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:22,921 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:22,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:44:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:27,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:44:27,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:27,409 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 05:44:27,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:27,672 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 05:44:27,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:27,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564467883] [2021-11-03 05:44:27,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564467883] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:27,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:27,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:44:27,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526539212] [2021-11-03 05:44:27,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:44:27,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:27,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:44:27,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:44:27,703 INFO L87 Difference]: Start difference. First operand has 224 states, 210 states have (on average 1.480952380952381) internal successors, (311), 223 states have internal predecessors, (311), 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 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 05:44:27,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:27,757 INFO L93 Difference]: Finished difference Result 444 states and 617 transitions. [2021-11-03 05:44:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:44:27,758 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2021-11-03 05:44:27,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:27,775 INFO L225 Difference]: With dead ends: 444 [2021-11-03 05:44:27,775 INFO L226 Difference]: Without dead ends: 217 [2021-11-03 05:44:27,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 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 05:44:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-03 05:44:27,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-11-03 05:44:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 204 states have (on average 1.3480392156862746) internal successors, (275), 216 states have internal predecessors, (275), 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 05:44:27,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions. [2021-11-03 05:44:27,848 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 53 [2021-11-03 05:44:27,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:27,849 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions. [2021-11-03 05:44:27,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 05:44:27,849 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions. [2021-11-03 05:44:27,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 05:44:27,853 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:27,853 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:27,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:28,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:28,054 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:44:28,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:28,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1818889704, now seen corresponding path program 1 times [2021-11-03 05:44:28,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:28,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148270947] [2021-11-03 05:44:28,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:28,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:28,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:28,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:28,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:44:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:32,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:44:32,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:32,419 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 05:44:32,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:32,660 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 05:44:32,660 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:32,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148270947] [2021-11-03 05:44:32,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148270947] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:32,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:32,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:44:32,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315930857] [2021-11-03 05:44:32,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:44:32,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:32,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:44:32,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:44:32,664 INFO L87 Difference]: Start difference. First operand 217 states and 275 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 05:44:32,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:32,909 INFO L93 Difference]: Finished difference Result 413 states and 523 transitions. [2021-11-03 05:44:32,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:44:32,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2021-11-03 05:44:32,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:32,911 INFO L225 Difference]: With dead ends: 413 [2021-11-03 05:44:32,912 INFO L226 Difference]: Without dead ends: 217 [2021-11-03 05:44:32,913 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:44:32,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-03 05:44:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-11-03 05:44:32,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 204 states have (on average 1.3333333333333333) internal successors, (272), 216 states have internal predecessors, (272), 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 05:44:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 272 transitions. [2021-11-03 05:44:32,927 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 272 transitions. Word has length 53 [2021-11-03 05:44:32,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:32,927 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 272 transitions. [2021-11-03 05:44:32,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 05:44:32,927 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 272 transitions. [2021-11-03 05:44:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 05:44:32,930 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:32,930 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:32,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:33,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:33,140 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:44:33,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:33,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1514747006, now seen corresponding path program 1 times [2021-11-03 05:44:33,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:33,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668283460] [2021-11-03 05:44:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:33,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:33,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:33,146 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:33,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:44:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:37,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:44:37,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:37,890 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 05:44:37,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:38,174 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 05:44:38,174 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:38,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668283460] [2021-11-03 05:44:38,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668283460] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:38,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:38,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:44:38,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810502936] [2021-11-03 05:44:38,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:44:38,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:38,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:44:38,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:44:38,177 INFO L87 Difference]: Start difference. First operand 217 states and 272 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 05:44:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:38,407 INFO L93 Difference]: Finished difference Result 385 states and 482 transitions. [2021-11-03 05:44:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:44:38,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2021-11-03 05:44:38,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:38,413 INFO L225 Difference]: With dead ends: 385 [2021-11-03 05:44:38,413 INFO L226 Difference]: Without dead ends: 217 [2021-11-03 05:44:38,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:44:38,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-03 05:44:38,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-11-03 05:44:38,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 204 states have (on average 1.3235294117647058) internal successors, (270), 216 states have internal predecessors, (270), 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 05:44:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 270 transitions. [2021-11-03 05:44:38,427 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 270 transitions. Word has length 57 [2021-11-03 05:44:38,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:38,428 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 270 transitions. [2021-11-03 05:44:38,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 05:44:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 270 transitions. [2021-11-03 05:44:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 05:44:38,431 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:38,431 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:38,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:38,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:38,636 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:44:38,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:38,637 INFO L85 PathProgramCache]: Analyzing trace with hash 319412887, now seen corresponding path program 1 times [2021-11-03 05:44:38,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:38,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520756740] [2021-11-03 05:44:38,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:38,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:38,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:38,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:38,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:44:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:43,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:44:43,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:43,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 05:44:43,869 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 05:44:43,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:44,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 05:44:44,457 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 05:44:44,457 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:44,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520756740] [2021-11-03 05:44:44,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520756740] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:44,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:44,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 05:44:44,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661830763] [2021-11-03 05:44:44,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:44:44,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:44,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:44:44,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:44:44,460 INFO L87 Difference]: Start difference. First operand 217 states and 270 transitions. Second operand has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:51,861 INFO L93 Difference]: Finished difference Result 594 states and 748 transitions. [2021-11-03 05:44:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 05:44:51,862 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-03 05:44:51,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:51,865 INFO L225 Difference]: With dead ends: 594 [2021-11-03 05:44:51,865 INFO L226 Difference]: Without dead ends: 425 [2021-11-03 05:44:51,865 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2021-11-03 05:44:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2021-11-03 05:44:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 327. [2021-11-03 05:44:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 314 states have (on average 1.3375796178343948) internal successors, (420), 326 states have internal predecessors, (420), 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 05:44:51,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 420 transitions. [2021-11-03 05:44:51,887 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 420 transitions. Word has length 63 [2021-11-03 05:44:51,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:51,887 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 420 transitions. [2021-11-03 05:44:51,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:51,888 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 420 transitions. [2021-11-03 05:44:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 05:44:51,891 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:51,891 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:51,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:52,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:52,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:44:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash 735656271, now seen corresponding path program 1 times [2021-11-03 05:44:52,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:52,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089172200] [2021-11-03 05:44:52,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:52,113 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:52,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:52,116 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:52,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:44:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:56,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1904 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:44:56,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:56,913 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:44:56,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:44:57,126 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 05:44:57,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:57,620 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 05:44:57,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:57,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089172200] [2021-11-03 05:44:57,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089172200] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:57,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:57,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:44:57,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004844129] [2021-11-03 05:44:57,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:44:57,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:57,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:44:57,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:44:57,623 INFO L87 Difference]: Start difference. First operand 327 states and 420 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 05:45:10,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:45:10,163 INFO L93 Difference]: Finished difference Result 924 states and 1184 transitions. [2021-11-03 05:45:10,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:45:10,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 67 [2021-11-03 05:45:10,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:45:10,170 INFO L225 Difference]: With dead ends: 924 [2021-11-03 05:45:10,170 INFO L226 Difference]: Without dead ends: 640 [2021-11-03 05:45:10,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:45:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-11-03 05:45:10,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 369. [2021-11-03 05:45:10,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 356 states have (on average 1.3314606741573034) internal successors, (474), 368 states have internal predecessors, (474), 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 05:45:10,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 474 transitions. [2021-11-03 05:45:10,195 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 474 transitions. Word has length 67 [2021-11-03 05:45:10,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:45:10,195 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 474 transitions. [2021-11-03 05:45:10,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 05:45:10,196 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 474 transitions. [2021-11-03 05:45:10,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 05:45:10,199 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:45:10,199 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:45:10,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:45:10,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:45:10,420 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:45:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:10,420 INFO L85 PathProgramCache]: Analyzing trace with hash -108349231, now seen corresponding path program 1 times [2021-11-03 05:45:10,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:45:10,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545188850] [2021-11-03 05:45:10,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:10,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:45:10,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:45:10,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:45:10,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:45:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:14,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1901 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:45:14,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:15,062 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:45:15,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 05:45:15,490 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 05:45:15,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:45:16,148 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 05:45:16,149 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:45:16,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545188850] [2021-11-03 05:45:16,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545188850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:45:16,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:45:16,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 05:45:16,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898800304] [2021-11-03 05:45:16,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:45:16,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:45:16,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:45:16,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:45:16,151 INFO L87 Difference]: Start difference. First operand 369 states and 474 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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 05:45:29,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:45:29,161 INFO L93 Difference]: Finished difference Result 1153 states and 1439 transitions. [2021-11-03 05:45:29,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 05:45:29,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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 67 [2021-11-03 05:45:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:45:29,171 INFO L225 Difference]: With dead ends: 1153 [2021-11-03 05:45:29,171 INFO L226 Difference]: Without dead ends: 770 [2021-11-03 05:45:29,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:45:29,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2021-11-03 05:45:29,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 364. [2021-11-03 05:45:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 351 states have (on average 1.2962962962962963) internal successors, (455), 363 states have internal predecessors, (455), 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 05:45:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 455 transitions. [2021-11-03 05:45:29,197 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 455 transitions. Word has length 67 [2021-11-03 05:45:29,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:45:29,198 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 455 transitions. [2021-11-03 05:45:29,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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 05:45:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 455 transitions. [2021-11-03 05:45:29,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:45:29,212 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:45:29,212 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:45:29,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:45:29,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:45:29,416 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:45:29,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:29,416 INFO L85 PathProgramCache]: Analyzing trace with hash -591691523, now seen corresponding path program 1 times [2021-11-03 05:45:29,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:45:29,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364714340] [2021-11-03 05:45:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:29,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:45:29,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:45:29,421 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:45:29,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:45:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:33,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:45:33,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:33,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:33,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:45:34,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:34,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:45:34,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364714340] [2021-11-03 05:45:34,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364714340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:45:34,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:45:34,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:45:34,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444088030] [2021-11-03 05:45:34,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:45:34,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:45:34,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:45:34,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:45:34,204 INFO L87 Difference]: Start difference. First operand 364 states and 455 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 05:45:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:45:34,471 INFO L93 Difference]: Finished difference Result 717 states and 887 transitions. [2021-11-03 05:45:34,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:45:34,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 75 [2021-11-03 05:45:34,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:45:34,474 INFO L225 Difference]: With dead ends: 717 [2021-11-03 05:45:34,474 INFO L226 Difference]: Without dead ends: 393 [2021-11-03 05:45:34,475 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:45:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-11-03 05:45:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 352. [2021-11-03 05:45:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 339 states have (on average 1.2713864306784661) internal successors, (431), 351 states have internal predecessors, (431), 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 05:45:34,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 431 transitions. [2021-11-03 05:45:34,493 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 431 transitions. Word has length 75 [2021-11-03 05:45:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:45:34,493 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 431 transitions. [2021-11-03 05:45:34,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 05:45:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 431 transitions. [2021-11-03 05:45:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:45:34,494 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:45:34,494 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:45:34,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:45:34,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:45:34,695 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:45:34,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:34,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1336581179, now seen corresponding path program 1 times [2021-11-03 05:45:34,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:45:34,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575674713] [2021-11-03 05:45:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:34,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:45:34,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:45:34,702 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:45:34,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:45:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:39,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1916 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 05:45:39,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:40,606 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 05:45:40,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:45:50,651 WARN L207 SmtUtils]: Spent 8.90 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 05:45:50,693 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 05:45:50,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771 [2021-11-03 05:54:39,275 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 05:54:39,275 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:54:39,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575674713] [2021-11-03 05:54:39,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575674713] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:54:39,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:54:39,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 14 [2021-11-03 05:54:39,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413106347] [2021-11-03 05:54:39,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 05:54:39,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:54:39,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 05:54:39,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:54:39,278 INFO L87 Difference]: Start difference. First operand 352 states and 431 transitions. Second operand has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 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 05:54:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:54:58,219 INFO L93 Difference]: Finished difference Result 598 states and 700 transitions. [2021-11-03 05:54:58,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:54:58,222 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 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 75 [2021-11-03 05:54:58,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:54:58,226 INFO L225 Difference]: With dead ends: 598 [2021-11-03 05:54:58,228 INFO L226 Difference]: Without dead ends: 449 [2021-11-03 05:54:58,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:54:58,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-11-03 05:54:58,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 339. [2021-11-03 05:54:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 338 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:54:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 412 transitions. [2021-11-03 05:54:58,246 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 412 transitions. Word has length 75 [2021-11-03 05:54:58,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:54:58,247 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 412 transitions. [2021-11-03 05:54:58,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 14 states have internal predecessors, (129), 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 05:54:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 412 transitions. [2021-11-03 05:54:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 05:54:58,251 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:54:58,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:54:58,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:54:58,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:54:58,476 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 05:54:58,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:54:58,476 INFO L85 PathProgramCache]: Analyzing trace with hash 231197571, now seen corresponding path program 1 times [2021-11-03 05:54:58,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:54:58,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212492719] [2021-11-03 05:54:58,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:54:58,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:54:58,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:54:58,481 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:54:58,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dac330c5-ce28-4ab0-85a0-26ba14fbffed/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:55:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:55:03,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1928 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:55:03,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:55:03,857 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:55:03,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-03 05:55:04,051 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 05:55:04,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:55:17,169 WARN L207 SmtUtils]: Spent 12.55 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-03 05:55:17,171 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-03 05:55:17,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772