./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:32:20,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:32:20,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:32:20,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:32:20,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:32:20,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:32:20,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:32:20,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:32:20,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:32:20,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:32:20,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:32:20,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:32:20,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:32:20,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:32:20,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:32:20,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:32:20,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:32:20,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:32:20,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:32:20,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:32:20,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:32:20,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:32:20,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:32:20,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:32:20,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:32:20,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:32:20,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:32:20,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:32:20,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:32:20,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:32:20,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:32:20,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:32:20,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:32:20,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:32:20,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:32:20,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:32:20,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:32:20,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:32:20,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:32:20,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:32:20,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:32:20,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:32:20,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:32:20,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:32:20,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:32:20,470 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:32:20,470 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:32:20,471 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:32:20,473 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:32:20,473 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:32:20,473 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:32:20,474 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:32:20,474 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:32:20,474 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:32:20,479 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:32:20,479 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:32:20,480 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:32:20,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:32:20,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:32:20,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:32:20,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:32:20,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:32:20,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:32:20,483 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:32:20,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:32:20,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:32:20,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:32:20,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:32:20,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:32:20,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:32:20,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:32:20,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:32:20,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:32:20,488 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:32:20,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:32:20,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:32:20,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:32:20,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:32:20,490 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2021-11-03 05:32:20,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:32:20,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:32:20,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:32:20,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:32:20,823 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:32:20,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-03 05:32:20,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data/65aaf0946/2d6c75c0d8aa4423a5d5388b774e7a78/FLAG82637a91d [2021-11-03 05:32:21,852 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:32:21,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-03 05:32:21,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data/65aaf0946/2d6c75c0d8aa4423a5d5388b774e7a78/FLAG82637a91d [2021-11-03 05:32:22,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data/65aaf0946/2d6c75c0d8aa4423a5d5388b774e7a78 [2021-11-03 05:32:22,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:32:22,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:32:22,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:32:22,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:32:22,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:32:22,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:32:22" (1/1) ... [2021-11-03 05:32:22,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d24399c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:22, skipping insertion in model container [2021-11-03 05:32:22,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:32:22" (1/1) ... [2021-11-03 05:32:22,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:32:22,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:32:22,732 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-03 05:32:22,741 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-03 05:32:22,770 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:32:22,778 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:32:23,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:23,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:24,162 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:32:24,163 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:32:24,164 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:32:24,165 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:32:24,167 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:32:24,167 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:32:24,168 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:32:24,169 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:32:24,169 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:32:24,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:32:24,326 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:32:24,342 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:32:24,348 INFO L168 Benchmark]: Toolchain (without parser) took 2070.00 ms. Allocated memory is still 121.6 MB. Free memory was 78.8 MB in the beginning and 55.5 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:32:24,349 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 79.7 MB. Free memory was 53.9 MB in the beginning and 53.9 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:32:24,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2066.88 ms. Allocated memory is still 121.6 MB. Free memory was 78.5 MB in the beginning and 55.5 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:32:24,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 79.7 MB. Free memory was 53.9 MB in the beginning and 53.9 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2066.88 ms. Allocated memory is still 121.6 MB. Free memory was 78.5 MB in the beginning and 55.5 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:32:26,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:32:26,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:32:26,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:32:26,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:32:26,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:32:26,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:32:26,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:32:26,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:32:26,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:32:26,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:32:26,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:32:26,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:32:26,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:32:26,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:32:26,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:32:26,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:32:26,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:32:26,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:32:26,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:32:26,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:32:26,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:32:26,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:32:26,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:32:26,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:32:26,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:32:26,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:32:26,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:32:26,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:32:26,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:32:26,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:32:26,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:32:26,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:32:26,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:32:26,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:32:26,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:32:26,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:32:26,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:32:26,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:32:26,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:32:26,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:32:26,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:32:26,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:32:26,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:32:26,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:32:26,724 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:32:26,724 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:32:26,725 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:32:26,725 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:32:26,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:32:26,725 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:32:26,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:32:26,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:32:26,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:32:26,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:32:26,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:32:26,727 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:32:26,727 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:32:26,727 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:32:26,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:32:26,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:32:26,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:32:26,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:32:26,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:32:26,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:32:26,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:32:26,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:32:26,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:32:26,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:32:26,728 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:32:26,728 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:32:26,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:32:26,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:32:26,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:32:26,729 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2021-11-03 05:32:27,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:32:27,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:32:27,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:32:27,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:32:27,155 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:32:27,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-03 05:32:27,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data/379a57367/95f08ee217d9421f8041a1a8743a0d5c/FLAGb9d9c2a51 [2021-11-03 05:32:28,213 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:32:28,214 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-03 05:32:28,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data/379a57367/95f08ee217d9421f8041a1a8743a0d5c/FLAGb9d9c2a51 [2021-11-03 05:32:28,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/data/379a57367/95f08ee217d9421f8041a1a8743a0d5c [2021-11-03 05:32:28,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:32:28,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:32:28,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:32:28,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:32:28,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:32:28,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:32:28" (1/1) ... [2021-11-03 05:32:28,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470e1ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:28, skipping insertion in model container [2021-11-03 05:32:28,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:32:28" (1/1) ... [2021-11-03 05:32:28,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:32:28,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:32:29,066 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-03 05:32:29,072 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-03 05:32:29,097 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:32:29,114 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:32:29,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:29,924 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:32:30,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:32:30,304 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:32:30,305 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:32:30,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:32:30,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:32:30,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:32:30,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:32:30,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:32:30,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:32:30,470 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:32:30,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,617 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:32:30,677 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:32:30,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:32:30,762 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-03 05:32:30,763 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-03 05:32:30,764 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:32:30,765 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:32:30,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,799 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,799 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:32:30,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:32:30,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:32:30,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:32:30,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:32:30,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:32:30,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:32:30,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:32:30,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:32:30,874 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:32:30,920 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:32:30,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,963 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,996 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,996 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,996 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:30,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,003 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,004 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:32:31,055 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:32:31,080 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-03 05:32:31,081 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_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-03 05:32:31,082 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:32:31,083 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:32:31,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,186 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:32:31,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:32:31,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:32:31,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:32:31,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:32:31,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:32:31,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:32:31,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:32:31,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:32:31,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:32:31,222 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:32:31,237 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,237 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,284 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:32:31,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:32:31,555 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:32:31,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31 WrapperNode [2021-11-03 05:32:31,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:32:31,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:32:31,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:32:31,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:32:31,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:31,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:31,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:32:31,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:32:31,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:32:31,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:32:31,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:31,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:31,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:31,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:32,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:32,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:32,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:32,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:32:32,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:32:32,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:32:32,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:32:32,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (1/1) ... [2021-11-03 05:32:32,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:32:32,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:32:32,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:32:32,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:32:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:32:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:32:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:32:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:32:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:32:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:32:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:32:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:32:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:32:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:32:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:32:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 05:32:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:32:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:32:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:32:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:32:56,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:32:56,216 INFO L299 CfgBuilder]: Removed 788 assume(true) statements. [2021-11-03 05:32:56,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:32:56 BoogieIcfgContainer [2021-11-03 05:32:56,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:32:56,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:32:56,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:32:56,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:32:56,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:32:28" (1/3) ... [2021-11-03 05:32:56,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629f10d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:32:56, skipping insertion in model container [2021-11-03 05:32:56,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:32:31" (2/3) ... [2021-11-03 05:32:56,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629f10d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:32:56, skipping insertion in model container [2021-11-03 05:32:56,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:32:56" (3/3) ... [2021-11-03 05:32:56,227 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2021-11-03 05:32:56,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:32:56,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2021-11-03 05:32:56,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:32:56,301 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 05:32:56,301 INFO L340 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2021-11-03 05:32:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 994 states, 968 states have (on average 1.4287190082644627) internal successors, (1383), 993 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:32:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 05:32:56,344 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:56,345 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] [2021-11-03 05:32:56,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:32:56,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:56,354 INFO L85 PathProgramCache]: Analyzing trace with hash -97697725, now seen corresponding path program 1 times [2021-11-03 05:32:56,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:56,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798290234] [2021-11-03 05:32:56,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:56,379 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:56,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:56,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:56,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:33:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:00,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:33:00,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:00,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:00,805 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:00,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798290234] [2021-11-03 05:33:00,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798290234] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:00,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:00,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:33:00,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272862058] [2021-11-03 05:33:00,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:33:00,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:00,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:33:00,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:33:00,829 INFO L87 Difference]: Start difference. First operand has 994 states, 968 states have (on average 1.4287190082644627) internal successors, (1383), 993 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:00,933 INFO L93 Difference]: Finished difference Result 1982 states and 2759 transitions. [2021-11-03 05:33:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:33:00,935 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2021-11-03 05:33:00,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:00,955 INFO L225 Difference]: With dead ends: 1982 [2021-11-03 05:33:00,955 INFO L226 Difference]: Without dead ends: 989 [2021-11-03 05:33:00,963 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 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 05:33:00,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2021-11-03 05:33:01,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2021-11-03 05:33:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3246887966804979) internal successors, (1277), 988 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1277 transitions. [2021-11-03 05:33:01,055 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1277 transitions. Word has length 42 [2021-11-03 05:33:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:01,055 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1277 transitions. [2021-11-03 05:33:01,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:01,056 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1277 transitions. [2021-11-03 05:33:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 05:33:01,065 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:01,067 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] [2021-11-03 05:33:01,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:01,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:01,283 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:33:01,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:01,284 INFO L85 PathProgramCache]: Analyzing trace with hash 268775359, now seen corresponding path program 1 times [2021-11-03 05:33:01,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:01,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908041719] [2021-11-03 05:33:01,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:01,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:01,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:01,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:01,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:33:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:05,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:33:05,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:05,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:05,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:05,526 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:05,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908041719] [2021-11-03 05:33:05,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908041719] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:05,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:05,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:33:05,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962640002] [2021-11-03 05:33:05,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:33:05,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:05,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:33:05,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:05,530 INFO L87 Difference]: Start difference. First operand 989 states and 1277 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:05,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:05,788 INFO L93 Difference]: Finished difference Result 2111 states and 2719 transitions. [2021-11-03 05:33:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:33:05,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-03 05:33:05,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:05,796 INFO L225 Difference]: With dead ends: 2111 [2021-11-03 05:33:05,796 INFO L226 Difference]: Without dead ends: 1202 [2021-11-03 05:33:05,799 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 05:33:05,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2021-11-03 05:33:05,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 989. [2021-11-03 05:33:05,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3215767634854771) internal successors, (1274), 988 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1274 transitions. [2021-11-03 05:33:05,844 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1274 transitions. Word has length 42 [2021-11-03 05:33:05,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:05,844 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1274 transitions. [2021-11-03 05:33:05,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1274 transitions. [2021-11-03 05:33:05,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 05:33:05,850 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:05,850 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:05,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:06,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:06,075 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:33:06,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash 82325853, now seen corresponding path program 1 times [2021-11-03 05:33:06,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:06,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002181393] [2021-11-03 05:33:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:06,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:06,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:06,081 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:06,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:33:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:09,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:33:09,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:10,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:10,396 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:10,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002181393] [2021-11-03 05:33:10,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002181393] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:10,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:10,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:33:10,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540104147] [2021-11-03 05:33:10,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:33:10,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:10,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:33:10,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:33:10,399 INFO L87 Difference]: Start difference. First operand 989 states and 1274 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:13,872 INFO L93 Difference]: Finished difference Result 2206 states and 2835 transitions. [2021-11-03 05:33:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:33:13,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 05:33:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:13,880 INFO L225 Difference]: With dead ends: 2206 [2021-11-03 05:33:13,880 INFO L226 Difference]: Without dead ends: 1265 [2021-11-03 05:33:13,882 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:33:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2021-11-03 05:33:13,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 989. [2021-11-03 05:33:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3184647302904564) internal successors, (1271), 988 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1271 transitions. [2021-11-03 05:33:13,916 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1271 transitions. Word has length 50 [2021-11-03 05:33:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:13,916 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1271 transitions. [2021-11-03 05:33:13,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:13,917 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1271 transitions. [2021-11-03 05:33:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 05:33:13,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:13,918 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:13,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 05:33:14,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:14,143 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:33:14,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:14,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1376076053, now seen corresponding path program 1 times [2021-11-03 05:33:14,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:14,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494536935] [2021-11-03 05:33:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:14,147 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:14,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:14,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:14,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:33:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:18,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:33:18,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:18,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:19,143 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:19,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494536935] [2021-11-03 05:33:19,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494536935] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:19,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:19,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:33:19,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680441726] [2021-11-03 05:33:19,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:33:19,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:19,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:33:19,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:33:19,146 INFO L87 Difference]: Start difference. First operand 989 states and 1271 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:20,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:20,028 INFO L93 Difference]: Finished difference Result 2802 states and 3579 transitions. [2021-11-03 05:33:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:33:20,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2021-11-03 05:33:20,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:20,041 INFO L225 Difference]: With dead ends: 2802 [2021-11-03 05:33:20,041 INFO L226 Difference]: Without dead ends: 1892 [2021-11-03 05:33:20,043 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:33:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2021-11-03 05:33:20,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 989. [2021-11-03 05:33:20,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3153526970954357) internal successors, (1268), 988 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:20,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1268 transitions. [2021-11-03 05:33:20,120 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1268 transitions. Word has length 66 [2021-11-03 05:33:20,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:20,121 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1268 transitions. [2021-11-03 05:33:20,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:20,122 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1268 transitions. [2021-11-03 05:33:20,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 05:33:20,123 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:20,123 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:20,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:20,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:20,324 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:33:20,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:20,326 INFO L85 PathProgramCache]: Analyzing trace with hash 726765177, now seen corresponding path program 1 times [2021-11-03 05:33:20,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:20,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555806604] [2021-11-03 05:33:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:20,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:20,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:20,331 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:20,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:33:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:24,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:33:24,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:24,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:25,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:25,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555806604] [2021-11-03 05:33:25,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555806604] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:25,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:25,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-03 05:33:25,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561680793] [2021-11-03 05:33:25,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:33:25,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:25,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:33:25,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:33:25,502 INFO L87 Difference]: Start difference. First operand 989 states and 1268 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:30,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:30,942 INFO L93 Difference]: Finished difference Result 3878 states and 4916 transitions. [2021-11-03 05:33:30,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:33:30,944 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 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 90 [2021-11-03 05:33:30,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:30,960 INFO L225 Difference]: With dead ends: 3878 [2021-11-03 05:33:30,960 INFO L226 Difference]: Without dead ends: 2952 [2021-11-03 05:33:30,963 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-03 05:33:30,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-11-03 05:33:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 989. [2021-11-03 05:33:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.312240663900415) internal successors, (1265), 988 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1265 transitions. [2021-11-03 05:33:31,026 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1265 transitions. Word has length 90 [2021-11-03 05:33:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:31,027 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1265 transitions. [2021-11-03 05:33:31,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:31,027 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1265 transitions. [2021-11-03 05:33:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 05:33:31,028 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:31,028 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:31,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:31,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:31,243 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:33:31,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1774462527, now seen corresponding path program 1 times [2021-11-03 05:33:31,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:31,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317598665] [2021-11-03 05:33:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:31,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:31,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:31,252 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:31,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:33:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:35,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1879 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:33:35,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:36,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:36,533 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:36,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317598665] [2021-11-03 05:33:36,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317598665] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:36,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:36,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:33:36,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339452743] [2021-11-03 05:33:36,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:33:36,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:33:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:33:36,536 INFO L87 Difference]: Start difference. First operand 989 states and 1265 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:37,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:37,543 INFO L93 Difference]: Finished difference Result 2732 states and 3487 transitions. [2021-11-03 05:33:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:33:37,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-03 05:33:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:37,554 INFO L225 Difference]: With dead ends: 2732 [2021-11-03 05:33:37,554 INFO L226 Difference]: Without dead ends: 1821 [2021-11-03 05:33:37,557 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:33:37,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2021-11-03 05:33:37,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1025. [2021-11-03 05:33:37,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1000 states have (on average 1.313) internal successors, (1313), 1024 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1313 transitions. [2021-11-03 05:33:37,622 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1313 transitions. Word has length 106 [2021-11-03 05:33:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:37,624 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1313 transitions. [2021-11-03 05:33:37,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1313 transitions. [2021-11-03 05:33:37,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 05:33:37,631 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:37,632 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:37,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:37,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:37,855 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:33:37,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:37,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1841232515, now seen corresponding path program 1 times [2021-11-03 05:33:37,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:37,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100449322] [2021-11-03 05:33:37,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:37,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:37,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:37,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:37,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:33:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:42,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:33:42,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:43,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:44,018 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:44,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100449322] [2021-11-03 05:33:44,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100449322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:44,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:44,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 05:33:44,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784375732] [2021-11-03 05:33:44,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:33:44,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:44,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:33:44,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:33:44,020 INFO L87 Difference]: Start difference. First operand 1025 states and 1313 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:15,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:15,617 INFO L93 Difference]: Finished difference Result 2737 states and 3490 transitions. [2021-11-03 05:35:15,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:35:15,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-03 05:35:15,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:15,629 INFO L225 Difference]: With dead ends: 2737 [2021-11-03 05:35:15,629 INFO L226 Difference]: Without dead ends: 1787 [2021-11-03 05:35:15,631 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:35:15,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2021-11-03 05:35:15,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1025. [2021-11-03 05:35:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1000 states have (on average 1.307) internal successors, (1307), 1024 states have internal predecessors, (1307), 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 05:35:15,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1307 transitions. [2021-11-03 05:35:15,702 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1307 transitions. Word has length 106 [2021-11-03 05:35:15,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:15,702 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1307 transitions. [2021-11-03 05:35:15,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:15,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1307 transitions. [2021-11-03 05:35:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 05:35:15,704 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:15,704 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:35:15,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:35:15,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:15,923 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:35:15,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1225407999, now seen corresponding path program 1 times [2021-11-03 05:35:15,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:15,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570116360] [2021-11-03 05:35:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:15,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:15,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:15,930 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:15,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:35:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:20,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1878 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:35:20,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:21,760 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 05:35:21,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:22,396 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:22,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570116360] [2021-11-03 05:35:22,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570116360] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:22,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:22,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-03 05:35:22,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066519696] [2021-11-03 05:35:22,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:35:22,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:35:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:35:22,399 INFO L87 Difference]: Start difference. First operand 1025 states and 1307 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:37:15,360 INFO L93 Difference]: Finished difference Result 2743 states and 3484 transitions. [2021-11-03 05:37:15,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 05:37:15,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-03 05:37:15,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:37:15,370 INFO L225 Difference]: With dead ends: 2743 [2021-11-03 05:37:15,371 INFO L226 Difference]: Without dead ends: 1793 [2021-11-03 05:37:15,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:37:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2021-11-03 05:37:15,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1037. [2021-11-03 05:37:15,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1012 states have (on average 1.2974308300395256) internal successors, (1313), 1036 states have internal predecessors, (1313), 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 05:37:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1313 transitions. [2021-11-03 05:37:15,440 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1313 transitions. Word has length 106 [2021-11-03 05:37:15,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:37:15,441 INFO L470 AbstractCegarLoop]: Abstraction has 1037 states and 1313 transitions. [2021-11-03 05:37:15,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:15,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1313 transitions. [2021-11-03 05:37:15,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 05:37:15,442 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:37:15,443 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:37:15,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:37:15,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:37:15,667 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:37:15,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:37:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash -335007621, now seen corresponding path program 1 times [2021-11-03 05:37:15,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:37:15,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004623911] [2021-11-03 05:37:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:37:15,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:37:15,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:37:15,671 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:37:15,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:37:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:37:20,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 05:37:20,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:37:21,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-03 05:37:21,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-03 05:37:21,876 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 05:37:21,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:37:24,674 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:37:24,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-03 05:37:24,715 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-03 05:37:24,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-03 05:37:25,141 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 05:37:25,142 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:37:25,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004623911] [2021-11-03 05:37:25,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004623911] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:37:25,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:37:25,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-11-03 05:37:25,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062094907] [2021-11-03 05:37:25,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 05:37:25,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:37:25,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 05:37:25,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:37:25,144 INFO L87 Difference]: Start difference. First operand 1037 states and 1313 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:38:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:38:42,369 INFO L93 Difference]: Finished difference Result 6077 states and 7672 transitions. [2021-11-03 05:38:42,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 05:38:42,370 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-03 05:38:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:38:42,397 INFO L225 Difference]: With dead ends: 6077 [2021-11-03 05:38:42,398 INFO L226 Difference]: Without dead ends: 5144 [2021-11-03 05:38:42,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2021-11-03 05:38:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2021-11-03 05:38:42,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 1045. [2021-11-03 05:38:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1020 states have (on average 1.2950980392156863) internal successors, (1321), 1044 states have internal predecessors, (1321), 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 05:38:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1321 transitions. [2021-11-03 05:38:42,515 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1321 transitions. Word has length 106 [2021-11-03 05:38:42,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:38:42,516 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 1321 transitions. [2021-11-03 05:38:42,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:38:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1321 transitions. [2021-11-03 05:38:42,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-03 05:38:42,517 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:38:42,518 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:38:42,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-03 05:38:42,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:38:42,735 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:38:42,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:38:42,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1027709372, now seen corresponding path program 1 times [2021-11-03 05:38:42,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:38:42,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828536746] [2021-11-03 05:38:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:38:42,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:38:42,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:38:42,739 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:38:42,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:38:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:38:47,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:38:47,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:38:48,063 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 05:38:48,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:38:48,284 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 05:38:48,285 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:38:48,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828536746] [2021-11-03 05:38:48,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828536746] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:38:48,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:38:48,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:38:48,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480422474] [2021-11-03 05:38:48,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:38:48,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:38:48,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:38:48,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:38:48,287 INFO L87 Difference]: Start difference. First operand 1045 states and 1321 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:38:48,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:38:48,538 INFO L93 Difference]: Finished difference Result 2193 states and 2783 transitions. [2021-11-03 05:38:48,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:38:48,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-03 05:38:48,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:38:48,549 INFO L225 Difference]: With dead ends: 2193 [2021-11-03 05:38:48,549 INFO L226 Difference]: Without dead ends: 2055 [2021-11-03 05:38:48,551 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:38:48,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2021-11-03 05:38:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1050. [2021-11-03 05:38:48,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.293658536585366) internal successors, (1326), 1049 states have internal predecessors, (1326), 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 05:38:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1326 transitions. [2021-11-03 05:38:48,692 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1326 transitions. Word has length 108 [2021-11-03 05:38:48,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:38:48,692 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1326 transitions. [2021-11-03 05:38:48,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:38:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1326 transitions. [2021-11-03 05:38:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 05:38:48,695 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:38:48,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:38:48,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-03 05:38:48,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:38:48,911 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:38:48,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:38:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash 64676664, now seen corresponding path program 1 times [2021-11-03 05:38:48,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:38:48,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556721618] [2021-11-03 05:38:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:38:48,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:38:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:38:48,915 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:38:48,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:38:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:38:54,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:38:54,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:38:54,702 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 05:38:54,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:38:55,335 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 05:38:55,336 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:38:55,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556721618] [2021-11-03 05:38:55,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556721618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:38:55,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:38:55,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:38:55,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932364654] [2021-11-03 05:38:55,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:38:55,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:38:55,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:38:55,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:38:55,338 INFO L87 Difference]: Start difference. First operand 1050 states and 1326 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 05:38:55,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:38:55,737 INFO L93 Difference]: Finished difference Result 2136 states and 2704 transitions. [2021-11-03 05:38:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:38:55,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 110 [2021-11-03 05:38:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:38:55,744 INFO L225 Difference]: With dead ends: 2136 [2021-11-03 05:38:55,744 INFO L226 Difference]: Without dead ends: 1264 [2021-11-03 05:38:55,746 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:38:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2021-11-03 05:38:55,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1050. [2021-11-03 05:38:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2917073170731708) internal successors, (1324), 1049 states have internal predecessors, (1324), 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 05:38:55,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1324 transitions. [2021-11-03 05:38:55,843 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1324 transitions. Word has length 110 [2021-11-03 05:38:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:38:55,844 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1324 transitions. [2021-11-03 05:38:55,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 05:38:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1324 transitions. [2021-11-03 05:38:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-03 05:38:55,845 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:38:55,846 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:38:55,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:38:56,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:38:56,067 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:38:56,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:38:56,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2058054553, now seen corresponding path program 1 times [2021-11-03 05:38:56,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:38:56,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100194540] [2021-11-03 05:38:56,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:38:56,070 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:38:56,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:38:56,071 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:38:56,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:39:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:39:01,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:39:01,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:39:02,087 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 05:39:02,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:39:02,748 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 05:39:02,749 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:39:02,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100194540] [2021-11-03 05:39:02,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100194540] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:39:02,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:39:02,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 05:39:02,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822185394] [2021-11-03 05:39:02,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:39:02,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:39:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:39:02,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:39:02,751 INFO L87 Difference]: Start difference. First operand 1050 states and 1324 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 05:39:06,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:39:06,075 INFO L93 Difference]: Finished difference Result 2176 states and 2748 transitions. [2021-11-03 05:39:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 05:39:06,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 114 [2021-11-03 05:39:06,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:39:06,081 INFO L225 Difference]: With dead ends: 2176 [2021-11-03 05:39:06,081 INFO L226 Difference]: Without dead ends: 1304 [2021-11-03 05:39:06,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:39:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2021-11-03 05:39:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1050. [2021-11-03 05:39:06,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2878048780487805) internal successors, (1320), 1049 states have internal predecessors, (1320), 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 05:39:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1320 transitions. [2021-11-03 05:39:06,182 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1320 transitions. Word has length 114 [2021-11-03 05:39:06,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:39:06,182 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1320 transitions. [2021-11-03 05:39:06,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 05:39:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1320 transitions. [2021-11-03 05:39:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-03 05:39:06,184 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:39:06,185 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:39:06,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 05:39:06,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:39:06,407 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:39:06,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:39:06,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1877694083, now seen corresponding path program 1 times [2021-11-03 05:39:06,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:39:06,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53319407] [2021-11-03 05:39:06,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:39:06,411 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:39:06,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:39:06,411 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:39:06,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 05:39:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:39:12,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1951 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:39:12,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:39:12,822 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 05:39:12,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:39:13,531 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 05:39:13,532 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:39:13,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53319407] [2021-11-03 05:39:13,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53319407] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:39:13,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:39:13,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 05:39:13,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744007702] [2021-11-03 05:39:13,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:39:13,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:39:13,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:39:13,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:39:13,534 INFO L87 Difference]: Start difference. First operand 1050 states and 1320 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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 05:39:14,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:39:14,436 INFO L93 Difference]: Finished difference Result 2416 states and 3043 transitions. [2021-11-03 05:39:14,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 05:39:14,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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 122 [2021-11-03 05:39:14,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:39:14,442 INFO L225 Difference]: With dead ends: 2416 [2021-11-03 05:39:14,442 INFO L226 Difference]: Without dead ends: 1544 [2021-11-03 05:39:14,444 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:39:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2021-11-03 05:39:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1050. [2021-11-03 05:39:14,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2858536585365854) internal successors, (1318), 1049 states have internal predecessors, (1318), 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 05:39:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1318 transitions. [2021-11-03 05:39:14,544 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1318 transitions. Word has length 122 [2021-11-03 05:39:14,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:39:14,545 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1318 transitions. [2021-11-03 05:39:14,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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 05:39:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1318 transitions. [2021-11-03 05:39:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-03 05:39:14,547 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:39:14,547 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:39:14,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:39:14,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:39:14,763 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:39:14,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:39:14,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1389825570, now seen corresponding path program 1 times [2021-11-03 05:39:14,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:39:14,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623314889] [2021-11-03 05:39:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:39:14,767 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:39:14,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:39:14,768 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:39:14,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:39:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:39:20,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:39:20,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:39:21,400 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 05:39:21,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:39:22,334 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 05:39:22,334 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:39:22,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623314889] [2021-11-03 05:39:22,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623314889] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:39:22,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:39:22,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-03 05:39:22,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289595312] [2021-11-03 05:39:22,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:39:22,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:39:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:39:22,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:39:22,336 INFO L87 Difference]: Start difference. First operand 1050 states and 1318 transitions. Second operand has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 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 05:39:25,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:39:25,922 INFO L93 Difference]: Finished difference Result 2191 states and 2762 transitions. [2021-11-03 05:39:25,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:39:25,923 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 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 129 [2021-11-03 05:39:25,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:39:25,928 INFO L225 Difference]: With dead ends: 2191 [2021-11-03 05:39:25,928 INFO L226 Difference]: Without dead ends: 1319 [2021-11-03 05:39:25,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-03 05:39:25,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2021-11-03 05:39:26,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1050. [2021-11-03 05:39:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.278048780487805) internal successors, (1310), 1049 states have internal predecessors, (1310), 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 05:39:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1310 transitions. [2021-11-03 05:39:26,011 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1310 transitions. Word has length 129 [2021-11-03 05:39:26,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:39:26,012 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1310 transitions. [2021-11-03 05:39:26,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 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 05:39:26,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1310 transitions. [2021-11-03 05:39:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-03 05:39:26,014 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:39:26,014 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:39:26,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:39:26,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:39:26,231 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:39:26,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:39:26,231 INFO L85 PathProgramCache]: Analyzing trace with hash 49364914, now seen corresponding path program 1 times [2021-11-03 05:39:26,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:39:26,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448148156] [2021-11-03 05:39:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:39:26,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:39:26,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:39:26,236 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:39:26,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 05:39:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:39:32,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:39:32,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:39:32,914 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 05:39:32,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:39:33,653 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 05:39:33,654 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:39:33,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448148156] [2021-11-03 05:39:33,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448148156] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:39:33,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:39:33,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 05:39:33,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552997879] [2021-11-03 05:39:33,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:39:33,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:39:33,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:39:33,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:39:33,656 INFO L87 Difference]: Start difference. First operand 1050 states and 1310 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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 05:39:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:39:37,910 INFO L93 Difference]: Finished difference Result 2418 states and 3009 transitions. [2021-11-03 05:39:37,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 05:39:37,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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 134 [2021-11-03 05:39:37,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:39:37,919 INFO L225 Difference]: With dead ends: 2418 [2021-11-03 05:39:37,919 INFO L226 Difference]: Without dead ends: 1546 [2021-11-03 05:39:37,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2021-11-03 05:39:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2021-11-03 05:39:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1050. [2021-11-03 05:39:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2760975609756098) internal successors, (1308), 1049 states have internal predecessors, (1308), 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 05:39:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1308 transitions. [2021-11-03 05:39:38,016 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1308 transitions. Word has length 134 [2021-11-03 05:39:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:39:38,017 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1308 transitions. [2021-11-03 05:39:38,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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 05:39:38,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1308 transitions. [2021-11-03 05:39:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-03 05:39:38,019 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:39:38,019 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:39:38,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-03 05:39:38,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:39:38,235 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-03 05:39:38,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:39:38,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1959022358, now seen corresponding path program 1 times [2021-11-03 05:39:38,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:39:38,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498955269] [2021-11-03 05:39:38,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:39:38,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:39:38,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:39:38,239 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:39:38,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d7be8c-32f0-4ed0-86c2-0bc291cacafa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-03 05:39:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:39:48,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 2040 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:39:48,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:39:49,164 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 05:39:49,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 131 treesize of output 35 [2021-11-03 05:39:50,714 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 05:39:50,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:39:52,214 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 05:39:52,214 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:39:52,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498955269] [2021-11-03 05:39:52,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498955269] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:39:52,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:39:52,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-03 05:39:52,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250711763] [2021-11-03 05:39:52,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 05:39:52,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:39:52,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 05:39:52,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:39:52,216 INFO L87 Difference]: Start difference. First operand 1050 states and 1308 transitions. Second operand has 14 states, 14 states have (on average 13.714285714285714) internal successors, (192), 14 states have internal predecessors, (192), 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)