./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:31:16,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:31:16,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:31:16,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:31:16,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:31:16,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:31:16,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:31:16,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:31:16,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:31:16,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:31:16,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:31:16,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:31:16,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:31:16,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:31:16,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:31:16,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:31:16,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:31:16,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:31:16,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:31:16,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:31:16,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:31:16,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:31:16,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:31:16,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:31:16,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:31:16,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:31:16,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:31:16,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:31:16,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:31:16,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:31:16,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:31:16,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:31:16,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:31:16,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:31:16,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:31:16,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:31:16,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:31:16,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:31:16,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:31:16,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:31:16,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:31:16,679 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:31:16,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:31:16,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:31:16,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:31:16,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:31:16,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:31:16,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:31:16,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:31:16,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:31:16,728 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:31:16,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:31:16,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:31:16,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:31:16,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:31:16,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:31:16,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:31:16,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:31:16,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:31:16,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:31:16,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:31:16,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:31:16,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:31:16,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:31:16,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:31:16,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:31:16,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:31:16,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:31:16,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:31:16,735 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:31:16,735 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:31:16,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:31:16,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:31:16,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2021-11-20 06:31:17,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:31:17,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:31:17,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:31:17,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:31:17,110 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:31:17,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2021-11-20 06:31:17,193 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data/68c34dfe6/c35ab1e8538d4ff4bc36c65818a7c9d5/FLAG82eedf858 [2021-11-20 06:31:18,030 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:31:18,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2021-11-20 06:31:18,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data/68c34dfe6/c35ab1e8538d4ff4bc36c65818a7c9d5/FLAG82eedf858 [2021-11-20 06:31:18,557 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data/68c34dfe6/c35ab1e8538d4ff4bc36c65818a7c9d5 [2021-11-20 06:31:18,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:31:18,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:31:18,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:31:18,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:31:18,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:31:18,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:31:18" (1/1) ... [2021-11-20 06:31:18,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426c9e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:18, skipping insertion in model container [2021-11-20 06:31:18,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:31:18" (1/1) ... [2021-11-20 06:31:18,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:31:18,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:31:18,957 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-20 06:31:18,964 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-20 06:31:19,963 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:19,969 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:19,970 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:19,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:19,973 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,004 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,004 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,007 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,010 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,016 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,018 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,019 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,019 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,454 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:31:20,455 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:31:20,457 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:31:20,458 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:31:20,460 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:31:20,460 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:31:20,461 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:31:20,502 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:31:20,510 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:31:20,511 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:31:20,689 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:31:20,721 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,729 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,805 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,806 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,807 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,807 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,808 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,808 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,809 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,810 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,810 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,811 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,811 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,811 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,812 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,815 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,816 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,816 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,817 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,821 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,822 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,831 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,832 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,833 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:31:20,879 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:31:20,894 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-20 06:31:20,896 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-20 06:31:20,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,982 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,983 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,991 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,991 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,992 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,993 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,994 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,994 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,995 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:20,995 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,058 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:31:21,101 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:31:21,102 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:31:21,103 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:31:21,104 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:31:21,105 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:31:21,105 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:31:21,106 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:31:21,106 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:31:21,107 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:31:21,129 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:31:21,148 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,153 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,180 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,180 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,181 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,181 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,181 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,182 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,182 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,183 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,183 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,184 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,184 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,184 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,185 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,185 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,186 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,186 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,187 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,189 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,196 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,197 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,197 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:31:21,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:31:21,494 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:31:21,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21 WrapperNode [2021-11-20 06:31:21,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:31:21,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:31:21,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:31:21,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:31:21,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,776 INFO L137 Inliner]: procedures = 697, calls = 1879, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1163 [2021-11-20 06:31:21,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:31:21,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:31:21,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:31:21,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:31:21,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:31:21,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:31:21,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:31:21,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:31:21,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (1/1) ... [2021-11-20 06:31:21,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:31:21,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:22,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:31:22,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:31:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2021-11-20 06:31:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2021-11-20 06:31:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2021-11-20 06:31:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2021-11-20 06:31:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-20 06:31:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-20 06:31:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:31:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-20 06:31:22,070 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-20 06:31:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-20 06:31:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-20 06:31:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-20 06:31:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-20 06:31:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-20 06:31:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-20 06:31:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2021-11-20 06:31:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2021-11-20 06:31:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:31:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-20 06:31:22,073 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-20 06:31:22,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 06:31:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 06:31:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:31:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:31:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:31:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2021-11-20 06:31:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2021-11-20 06:31:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-20 06:31:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-20 06:31:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:31:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:31:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 06:31:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 06:31:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-20 06:31:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-20 06:31:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-20 06:31:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-20 06:31:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-20 06:31:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-20 06:31:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-20 06:31:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-20 06:31:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-20 06:31:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-20 06:31:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 06:31:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 06:31:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:31:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:31:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-20 06:31:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-20 06:31:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2021-11-20 06:31:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2021-11-20 06:31:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-20 06:31:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-20 06:31:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:31:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-20 06:31:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-20 06:31:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:31:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:31:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-11-20 06:31:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-11-20 06:31:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-20 06:31:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-20 06:31:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-20 06:31:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-20 06:31:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-20 06:31:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-20 06:31:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:31:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-20 06:31:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-20 06:31:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2021-11-20 06:31:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2021-11-20 06:31:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2021-11-20 06:31:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2021-11-20 06:31:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 06:31:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 06:31:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:31:22,516 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:31:22,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:31:24,234 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:31:24,248 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:31:24,249 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-20 06:31:24,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:31:24 BoogieIcfgContainer [2021-11-20 06:31:24,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:31:24,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:31:24,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:31:24,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:31:24,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:31:18" (1/3) ... [2021-11-20 06:31:24,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7234649c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:31:24, skipping insertion in model container [2021-11-20 06:31:24,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:21" (2/3) ... [2021-11-20 06:31:24,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7234649c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:31:24, skipping insertion in model container [2021-11-20 06:31:24,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:31:24" (3/3) ... [2021-11-20 06:31:24,260 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2021-11-20 06:31:24,265 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:31:24,266 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 06:31:24,318 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:31:24,325 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=PETRI_NET, 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 [2021-11-20 06:31:24,350 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 06:31:24,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 545 states, 315 states have (on average 1.253968253968254) internal successors, (395), 318 states have internal predecessors, (395), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2021-11-20 06:31:24,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-20 06:31:24,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:24,403 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:24,404 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash 366145985, now seen corresponding path program 1 times [2021-11-20 06:31:24,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:24,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688325636] [2021-11-20 06:31:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:24,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:24,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:31:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:31:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:31:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:31:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:31:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:31:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:31:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:31:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:31:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:31:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 06:31:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:31:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:31:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:31:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:31:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 06:31:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 06:31:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:31:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 06:31:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 06:31:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:31:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-20 06:31:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 06:31:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 06:31:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 06:31:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 06:31:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 06:31:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:25,456 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-11-20 06:31:25,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:25,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688325636] [2021-11-20 06:31:25,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688325636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:25,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:25,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:31:25,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057391597] [2021-11-20 06:31:25,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:25,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:31:25,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:25,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:31:25,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:31:25,496 INFO L87 Difference]: Start difference. First operand has 545 states, 315 states have (on average 1.253968253968254) internal successors, (395), 318 states have internal predecessors, (395), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 06:31:27,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:27,028 INFO L93 Difference]: Finished difference Result 1235 states and 2048 transitions. [2021-11-20 06:31:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:31:27,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2021-11-20 06:31:27,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:27,063 INFO L225 Difference]: With dead ends: 1235 [2021-11-20 06:31:27,064 INFO L226 Difference]: Without dead ends: 696 [2021-11-20 06:31:27,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:31:27,083 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 333 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:27,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1068 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [580 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 06:31:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-11-20 06:31:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 538. [2021-11-20 06:31:27,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 309 states have (on average 1.2362459546925566) internal successors, (382), 311 states have internal predecessors, (382), 196 states have call successors, (196), 32 states have call predecessors, (196), 31 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2021-11-20 06:31:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 772 transitions. [2021-11-20 06:31:27,261 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 772 transitions. Word has length 167 [2021-11-20 06:31:27,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:27,261 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 772 transitions. [2021-11-20 06:31:27,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 06:31:27,262 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 772 transitions. [2021-11-20 06:31:27,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-20 06:31:27,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:27,267 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:27,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:31:27,268 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1489247165, now seen corresponding path program 1 times [2021-11-20 06:31:27,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:27,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792631921] [2021-11-20 06:31:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:27,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:31:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:31:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:31:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:31:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:31:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:31:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:31:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:31:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:31:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:31:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-20 06:31:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:31:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:31:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:31:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-20 06:31:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-20 06:31:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-20 06:31:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 06:31:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-20 06:31:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-20 06:31:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:31:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-20 06:31:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 06:31:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 06:31:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 06:31:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 06:31:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 06:31:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:27,877 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-20 06:31:27,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:27,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792631921] [2021-11-20 06:31:27,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792631921] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:31:27,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351349170] [2021-11-20 06:31:27,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:27,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:27,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:27,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:27,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:31:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:28,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 2382 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:31:28,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-20 06:31:28,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:28,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351349170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:28,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:31:28,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2021-11-20 06:31:28,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034620674] [2021-11-20 06:31:28,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:28,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:31:28,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:28,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:31:28,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:31:28,925 INFO L87 Difference]: Start difference. First operand 538 states and 772 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 06:31:29,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:29,359 INFO L93 Difference]: Finished difference Result 1045 states and 1512 transitions. [2021-11-20 06:31:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:31:29,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2021-11-20 06:31:29,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:29,366 INFO L225 Difference]: With dead ends: 1045 [2021-11-20 06:31:29,366 INFO L226 Difference]: Without dead ends: 540 [2021-11-20 06:31:29,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:31:29,372 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 798 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:29,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [806 Valid, 2704 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:31:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-11-20 06:31:29,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2021-11-20 06:31:29,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 310 states have (on average 1.235483870967742) internal successors, (383), 313 states have internal predecessors, (383), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2021-11-20 06:31:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 783 transitions. [2021-11-20 06:31:29,425 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 783 transitions. Word has length 167 [2021-11-20 06:31:29,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:29,426 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 783 transitions. [2021-11-20 06:31:29,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 06:31:29,427 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 783 transitions. [2021-11-20 06:31:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-20 06:31:29,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:29,431 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:29,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:29,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:29,646 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:29,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1823728084, now seen corresponding path program 1 times [2021-11-20 06:31:29,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:29,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725037745] [2021-11-20 06:31:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:29,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:31:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:31:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:31:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:31:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:31:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:31:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:31:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:31:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 06:31:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:29,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:31:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:31:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:31:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-20 06:31:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:31:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-20 06:31:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-20 06:31:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-20 06:31:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-20 06:31:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-20 06:31:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-20 06:31:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-20 06:31:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-20 06:31:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-20 06:31:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 06:31:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-20 06:31:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-20 06:31:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-20 06:31:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 06:31:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,273 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-11-20 06:31:30,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:30,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725037745] [2021-11-20 06:31:30,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725037745] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:31:30,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87806524] [2021-11-20 06:31:30,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:30,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:30,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:30,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:30,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:31:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:30,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 2432 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:31:30,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-20 06:31:31,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:31,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87806524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:31,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:31:31,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2021-11-20 06:31:31,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657950490] [2021-11-20 06:31:31,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:31,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:31:31,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:31,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:31:31,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:31:31,265 INFO L87 Difference]: Start difference. First operand 540 states and 783 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-20 06:31:32,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:32,066 INFO L93 Difference]: Finished difference Result 1068 states and 1592 transitions. [2021-11-20 06:31:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:31:32,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 175 [2021-11-20 06:31:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:32,073 INFO L225 Difference]: With dead ends: 1068 [2021-11-20 06:31:32,073 INFO L226 Difference]: Without dead ends: 561 [2021-11-20 06:31:32,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-11-20 06:31:32,078 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 839 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:32,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 3846 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:31:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-11-20 06:31:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 559. [2021-11-20 06:31:32,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 326 states have (on average 1.2423312883435582) internal successors, (405), 329 states have internal predecessors, (405), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2021-11-20 06:31:32,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2021-11-20 06:31:32,126 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 175 [2021-11-20 06:31:32,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:32,127 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2021-11-20 06:31:32,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-20 06:31:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2021-11-20 06:31:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-20 06:31:32,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:32,131 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:32,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:32,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:32,355 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:32,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:32,355 INFO L85 PathProgramCache]: Analyzing trace with hash 448672907, now seen corresponding path program 1 times [2021-11-20 06:31:32,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:32,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820385867] [2021-11-20 06:31:32,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:32,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:32,426 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:32,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237646531] [2021-11-20 06:31:32,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:32,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:32,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:32,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:32,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:31:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:32,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:31:32,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-20 06:31:33,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:33,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:33,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820385867] [2021-11-20 06:31:33,381 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:33,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237646531] [2021-11-20 06:31:33,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237646531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:33,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:33,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:31:33,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877424163] [2021-11-20 06:31:33,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:33,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:31:33,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:33,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:31:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:31:33,384 INFO L87 Difference]: Start difference. First operand 559 states and 841 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-20 06:31:34,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:34,006 INFO L93 Difference]: Finished difference Result 1093 states and 1674 transitions. [2021-11-20 06:31:34,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:31:34,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 190 [2021-11-20 06:31:34,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:34,016 INFO L225 Difference]: With dead ends: 1093 [2021-11-20 06:31:34,017 INFO L226 Difference]: Without dead ends: 567 [2021-11-20 06:31:34,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:31:34,025 INFO L933 BasicCegarLoop]: 697 mSDtfsCounter, 822 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:34,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [830 Valid, 3355 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:31:34,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-11-20 06:31:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 559. [2021-11-20 06:31:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 326 states have (on average 1.2423312883435582) internal successors, (405), 329 states have internal predecessors, (405), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2021-11-20 06:31:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2021-11-20 06:31:34,089 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 190 [2021-11-20 06:31:34,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:34,089 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2021-11-20 06:31:34,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-20 06:31:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2021-11-20 06:31:34,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-20 06:31:34,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:34,095 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:34,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:34,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:34,309 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:34,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:34,310 INFO L85 PathProgramCache]: Analyzing trace with hash 478941137, now seen corresponding path program 1 times [2021-11-20 06:31:34,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:34,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910997198] [2021-11-20 06:31:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:34,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:34,371 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:34,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170816462] [2021-11-20 06:31:34,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:34,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:34,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:34,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:34,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:31:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:34,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 2623 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:31:34,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-20 06:31:35,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:35,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:35,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910997198] [2021-11-20 06:31:35,365 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:35,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170816462] [2021-11-20 06:31:35,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170816462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:35,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:35,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:31:35,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336046175] [2021-11-20 06:31:35,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:35,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:31:35,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:35,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:31:35,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:31:35,368 INFO L87 Difference]: Start difference. First operand 559 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-20 06:31:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:36,418 INFO L93 Difference]: Finished difference Result 1103 states and 1681 transitions. [2021-11-20 06:31:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:31:36,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 206 [2021-11-20 06:31:36,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:36,426 INFO L225 Difference]: With dead ends: 1103 [2021-11-20 06:31:36,426 INFO L226 Difference]: Without dead ends: 577 [2021-11-20 06:31:36,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:31:36,432 INFO L933 BasicCegarLoop]: 664 mSDtfsCounter, 872 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 4448 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:36,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 4448 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 06:31:36,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-11-20 06:31:36,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 559. [2021-11-20 06:31:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 326 states have (on average 1.2423312883435582) internal successors, (405), 329 states have internal predecessors, (405), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2021-11-20 06:31:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2021-11-20 06:31:36,481 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 206 [2021-11-20 06:31:36,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:36,481 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2021-11-20 06:31:36,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-20 06:31:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2021-11-20 06:31:36,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-20 06:31:36,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:36,486 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:36,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:36,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:36,709 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:36,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:36,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1017677968, now seen corresponding path program 2 times [2021-11-20 06:31:36,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:36,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215870063] [2021-11-20 06:31:36,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:36,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:36,781 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:36,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450540077] [2021-11-20 06:31:36,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:31:36,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:36,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:36,783 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:36,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:31:37,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:31:37,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:31:37,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 2742 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:31:37,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-20 06:31:38,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:38,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:38,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215870063] [2021-11-20 06:31:38,189 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:38,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450540077] [2021-11-20 06:31:38,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450540077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:38,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:38,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:31:38,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647211137] [2021-11-20 06:31:38,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:38,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:31:38,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:38,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:31:38,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:31:38,192 INFO L87 Difference]: Start difference. First operand 559 states and 841 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-20 06:31:38,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:38,662 INFO L93 Difference]: Finished difference Result 1079 states and 1634 transitions. [2021-11-20 06:31:38,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:31:38,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 221 [2021-11-20 06:31:38,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:38,668 INFO L225 Difference]: With dead ends: 1079 [2021-11-20 06:31:38,669 INFO L226 Difference]: Without dead ends: 561 [2021-11-20 06:31:38,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:31:38,673 INFO L933 BasicCegarLoop]: 702 mSDtfsCounter, 850 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:38,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 3350 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:31:38,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-11-20 06:31:38,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2021-11-20 06:31:38,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 327 states have (on average 1.2415902140672783) internal successors, (406), 331 states have internal predecessors, (406), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (246), 197 states have call predecessors, (246), 196 states have call successors, (246) [2021-11-20 06:31:38,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 850 transitions. [2021-11-20 06:31:38,713 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 850 transitions. Word has length 221 [2021-11-20 06:31:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:38,714 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 850 transitions. [2021-11-20 06:31:38,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-20 06:31:38,715 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 850 transitions. [2021-11-20 06:31:38,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-20 06:31:38,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:38,718 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:38,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:38,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:38,933 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:38,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash -861609497, now seen corresponding path program 1 times [2021-11-20 06:31:38,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:38,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238983946] [2021-11-20 06:31:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:38,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:39,026 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:39,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107470944] [2021-11-20 06:31:39,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:39,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:39,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:39,028 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:39,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:31:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:39,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 2792 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:31:39,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:40,120 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-11-20 06:31:40,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:40,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:40,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238983946] [2021-11-20 06:31:40,121 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:40,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107470944] [2021-11-20 06:31:40,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107470944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:40,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:40,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:31:40,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055861647] [2021-11-20 06:31:40,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:40,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:31:40,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:40,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:31:40,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:31:40,124 INFO L87 Difference]: Start difference. First operand 561 states and 850 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-20 06:31:40,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:40,993 INFO L93 Difference]: Finished difference Result 1097 states and 1672 transitions. [2021-11-20 06:31:40,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:31:40,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 229 [2021-11-20 06:31:40,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:41,000 INFO L225 Difference]: With dead ends: 1097 [2021-11-20 06:31:41,000 INFO L226 Difference]: Without dead ends: 577 [2021-11-20 06:31:41,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:31:41,005 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 891 mSDsluCounter, 3788 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:41,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [951 Valid, 4458 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 06:31:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-11-20 06:31:41,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 575. [2021-11-20 06:31:41,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 340 states have (on average 1.2470588235294118) internal successors, (424), 343 states have internal predecessors, (424), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2021-11-20 06:31:41,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 870 transitions. [2021-11-20 06:31:41,062 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 870 transitions. Word has length 229 [2021-11-20 06:31:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:41,063 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 870 transitions. [2021-11-20 06:31:41,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-20 06:31:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 870 transitions. [2021-11-20 06:31:41,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-20 06:31:41,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:41,068 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:41,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:41,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 06:31:41,293 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:41,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:41,293 INFO L85 PathProgramCache]: Analyzing trace with hash 994439586, now seen corresponding path program 2 times [2021-11-20 06:31:41,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:41,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852970853] [2021-11-20 06:31:41,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:41,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:41,361 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:41,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709078374] [2021-11-20 06:31:41,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:31:41,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:41,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:41,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:41,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 06:31:42,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:31:42,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:31:42,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 2911 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:31:42,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-11-20 06:31:42,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:42,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:42,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852970853] [2021-11-20 06:31:42,956 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:42,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709078374] [2021-11-20 06:31:42,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709078374] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:42,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:42,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:31:42,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635813393] [2021-11-20 06:31:42,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:42,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:31:42,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:42,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:31:42,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:31:42,959 INFO L87 Difference]: Start difference. First operand 575 states and 870 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-20 06:31:43,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:43,487 INFO L93 Difference]: Finished difference Result 1117 states and 1712 transitions. [2021-11-20 06:31:43,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:31:43,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 244 [2021-11-20 06:31:43,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:43,494 INFO L225 Difference]: With dead ends: 1117 [2021-11-20 06:31:43,494 INFO L226 Difference]: Without dead ends: 583 [2021-11-20 06:31:43,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:31:43,499 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 874 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 3994 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:43,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [882 Valid, 3994 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:31:43,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2021-11-20 06:31:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 575. [2021-11-20 06:31:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 340 states have (on average 1.2470588235294118) internal successors, (424), 343 states have internal predecessors, (424), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2021-11-20 06:31:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 870 transitions. [2021-11-20 06:31:43,591 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 870 transitions. Word has length 244 [2021-11-20 06:31:43,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:43,592 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 870 transitions. [2021-11-20 06:31:43,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2021-11-20 06:31:43,592 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 870 transitions. [2021-11-20 06:31:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-20 06:31:43,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:43,599 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:43,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:43,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:43,799 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:43,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1506363748, now seen corresponding path program 3 times [2021-11-20 06:31:43,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:43,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897660762] [2021-11-20 06:31:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:43,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:43,883 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:43,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298529786] [2021-11-20 06:31:43,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:31:43,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:43,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:43,885 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:43,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 06:31:44,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 06:31:44,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:31:44,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-20 06:31:44,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-20 06:31:45,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:45,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:45,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897660762] [2021-11-20 06:31:45,358 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:45,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298529786] [2021-11-20 06:31:45,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298529786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:45,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:45,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:31:45,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816519103] [2021-11-20 06:31:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:45,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:31:45,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:45,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:31:45,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:31:45,361 INFO L87 Difference]: Start difference. First operand 575 states and 870 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-20 06:31:45,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:45,695 INFO L93 Difference]: Finished difference Result 1092 states and 1666 transitions. [2021-11-20 06:31:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:31:45,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 260 [2021-11-20 06:31:45,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:45,702 INFO L225 Difference]: With dead ends: 1092 [2021-11-20 06:31:45,703 INFO L226 Difference]: Without dead ends: 575 [2021-11-20 06:31:45,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:31:45,708 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 2 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:45,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 3540 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:31:45,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-11-20 06:31:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2021-11-20 06:31:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 340 states have (on average 1.2470588235294118) internal successors, (424), 343 states have internal predecessors, (424), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (246), 199 states have call predecessors, (246), 197 states have call successors, (246) [2021-11-20 06:31:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 869 transitions. [2021-11-20 06:31:45,747 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 869 transitions. Word has length 260 [2021-11-20 06:31:45,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:45,748 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 869 transitions. [2021-11-20 06:31:45,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-20 06:31:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 869 transitions. [2021-11-20 06:31:45,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-20 06:31:45,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:45,754 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:45,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:45,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:45,973 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:45,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:45,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1557399056, now seen corresponding path program 4 times [2021-11-20 06:31:45,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:45,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061706947] [2021-11-20 06:31:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:45,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:46,037 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:46,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459104014] [2021-11-20 06:31:46,037 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 06:31:46,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:46,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:46,039 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:46,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 06:31:46,411 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 06:31:46,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:31:46,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:31:46,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-20 06:31:46,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:46,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:46,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061706947] [2021-11-20 06:31:46,944 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:46,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459104014] [2021-11-20 06:31:46,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459104014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:46,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:46,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:31:46,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87930163] [2021-11-20 06:31:46,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:46,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:31:46,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:46,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:31:46,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:31:46,947 INFO L87 Difference]: Start difference. First operand 575 states and 869 transitions. Second operand has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-20 06:31:47,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:47,630 INFO L93 Difference]: Finished difference Result 1236 states and 1887 transitions. [2021-11-20 06:31:47,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:31:47,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 290 [2021-11-20 06:31:47,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:47,641 INFO L225 Difference]: With dead ends: 1236 [2021-11-20 06:31:47,642 INFO L226 Difference]: Without dead ends: 714 [2021-11-20 06:31:47,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:31:47,647 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 158 mSDsluCounter, 4614 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 5430 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:47,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 5430 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:31:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-11-20 06:31:47,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 672. [2021-11-20 06:31:47,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 406 states have (on average 1.270935960591133) internal successors, (516), 411 states have internal predecessors, (516), 228 states have call successors, (228), 33 states have call predecessors, (228), 36 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2021-11-20 06:31:47,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1033 transitions. [2021-11-20 06:31:47,696 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1033 transitions. Word has length 290 [2021-11-20 06:31:47,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:47,697 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 1033 transitions. [2021-11-20 06:31:47,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-20 06:31:47,698 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1033 transitions. [2021-11-20 06:31:47,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-20 06:31:47,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:47,704 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:47,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:47,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 06:31:47,925 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:47,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:47,925 INFO L85 PathProgramCache]: Analyzing trace with hash 983595122, now seen corresponding path program 5 times [2021-11-20 06:31:47,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:47,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915136229] [2021-11-20 06:31:47,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:47,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:47,988 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:47,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587797718] [2021-11-20 06:31:47,989 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 06:31:47,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:47,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:47,990 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:48,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 06:31:48,435 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:31:48,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:31:48,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:31:48,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:49,082 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-20 06:31:49,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:49,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:49,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915136229] [2021-11-20 06:31:49,083 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:49,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587797718] [2021-11-20 06:31:49,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587797718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:49,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:49,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:31:49,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347941579] [2021-11-20 06:31:49,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:49,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:31:49,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:49,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:31:49,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:31:49,085 INFO L87 Difference]: Start difference. First operand 672 states and 1033 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 06:31:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:49,674 INFO L93 Difference]: Finished difference Result 1401 states and 2211 transitions. [2021-11-20 06:31:49,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:31:49,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 290 [2021-11-20 06:31:49,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:49,684 INFO L225 Difference]: With dead ends: 1401 [2021-11-20 06:31:49,684 INFO L226 Difference]: Without dead ends: 762 [2021-11-20 06:31:49,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:31:49,690 INFO L933 BasicCegarLoop]: 776 mSDtfsCounter, 21 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3651 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:49,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 3651 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:31:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-11-20 06:31:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 690. [2021-11-20 06:31:49,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 424 states have (on average 1.2712264150943395) internal successors, (539), 429 states have internal predecessors, (539), 228 states have call successors, (228), 33 states have call predecessors, (228), 36 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2021-11-20 06:31:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1056 transitions. [2021-11-20 06:31:49,752 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1056 transitions. Word has length 290 [2021-11-20 06:31:49,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:49,753 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 1056 transitions. [2021-11-20 06:31:49,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 06:31:49,753 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1056 transitions. [2021-11-20 06:31:49,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-20 06:31:49,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:49,756 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:49,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:49,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:49,965 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:49,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:49,965 INFO L85 PathProgramCache]: Analyzing trace with hash -746406538, now seen corresponding path program 1 times [2021-11-20 06:31:49,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:49,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392783721] [2021-11-20 06:31:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:49,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:50,044 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:50,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475503774] [2021-11-20 06:31:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:50,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:50,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:50,046 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:50,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 06:31:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:50,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 3215 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:31:50,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2021-11-20 06:31:51,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:51,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:51,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392783721] [2021-11-20 06:31:51,201 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:51,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475503774] [2021-11-20 06:31:51,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475503774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:51,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:51,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:31:51,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504951864] [2021-11-20 06:31:51,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:51,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:31:51,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:51,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:31:51,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:31:51,204 INFO L87 Difference]: Start difference. First operand 690 states and 1056 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 06:31:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:51,272 INFO L93 Difference]: Finished difference Result 1367 states and 2131 transitions. [2021-11-20 06:31:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:31:51,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 290 [2021-11-20 06:31:51,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:51,280 INFO L225 Difference]: With dead ends: 1367 [2021-11-20 06:31:51,281 INFO L226 Difference]: Without dead ends: 710 [2021-11-20 06:31:51,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:31:51,288 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 3 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:51,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2302 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:31:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2021-11-20 06:31:51,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 700. [2021-11-20 06:31:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 434 states have (on average 1.2649769585253456) internal successors, (549), 439 states have internal predecessors, (549), 228 states have call successors, (228), 33 states have call predecessors, (228), 36 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2021-11-20 06:31:51,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1066 transitions. [2021-11-20 06:31:51,336 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1066 transitions. Word has length 290 [2021-11-20 06:31:51,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:51,337 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 1066 transitions. [2021-11-20 06:31:51,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-20 06:31:51,337 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1066 transitions. [2021-11-20 06:31:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-20 06:31:51,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:51,340 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:51,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:51,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:51,569 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:51,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash -873088841, now seen corresponding path program 1 times [2021-11-20 06:31:51,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:51,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997162210] [2021-11-20 06:31:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:51,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:51,637 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:51,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679884911] [2021-11-20 06:31:51,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:51,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:51,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:51,639 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:51,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 06:31:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:52,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 3255 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 06:31:52,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-11-20 06:31:53,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:53,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:53,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997162210] [2021-11-20 06:31:53,272 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:53,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679884911] [2021-11-20 06:31:53,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679884911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:53,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:53,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 06:31:53,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768074134] [2021-11-20 06:31:53,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:53,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:31:53,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:53,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:31:53,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:31:53,275 INFO L87 Difference]: Start difference. First operand 700 states and 1066 transitions. Second operand has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-20 06:31:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:54,605 INFO L93 Difference]: Finished difference Result 1383 states and 2108 transitions. [2021-11-20 06:31:54,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:31:54,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) Word has length 298 [2021-11-20 06:31:54,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:54,615 INFO L225 Difference]: With dead ends: 1383 [2021-11-20 06:31:54,616 INFO L226 Difference]: Without dead ends: 724 [2021-11-20 06:31:54,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:31:54,624 INFO L933 BasicCegarLoop]: 663 mSDtfsCounter, 924 mSDsluCounter, 4389 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 5052 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:54,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 5052 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:31:54,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-11-20 06:31:54,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 657. [2021-11-20 06:31:54,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 395 states have (on average 1.2582278481012659) internal successors, (497), 401 states have internal predecessors, (497), 225 states have call successors, (225), 33 states have call predecessors, (225), 35 states have return successors, (275), 222 states have call predecessors, (275), 223 states have call successors, (275) [2021-11-20 06:31:54,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 997 transitions. [2021-11-20 06:31:54,687 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 997 transitions. Word has length 298 [2021-11-20 06:31:54,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:54,688 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 997 transitions. [2021-11-20 06:31:54,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-20 06:31:54,689 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 997 transitions. [2021-11-20 06:31:54,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-20 06:31:54,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:54,692 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:54,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:54,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:54,910 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:54,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:54,910 INFO L85 PathProgramCache]: Analyzing trace with hash 230551033, now seen corresponding path program 1 times [2021-11-20 06:31:54,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:54,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983631981] [2021-11-20 06:31:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:54,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:54,984 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:54,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322645064] [2021-11-20 06:31:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:54,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:54,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:54,986 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:55,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 06:31:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:31:55,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 3324 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:31:55,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:56,160 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-20 06:31:56,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:31:56,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:31:56,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983631981] [2021-11-20 06:31:56,160 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:31:56,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322645064] [2021-11-20 06:31:56,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322645064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:31:56,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:31:56,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:31:56,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808846758] [2021-11-20 06:31:56,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:31:56,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:31:56,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:31:56,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:31:56,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:31:56,163 INFO L87 Difference]: Start difference. First operand 657 states and 997 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2021-11-20 06:31:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:31:56,704 INFO L93 Difference]: Finished difference Result 1127 states and 1686 transitions. [2021-11-20 06:31:56,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:31:56,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 305 [2021-11-20 06:31:56,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:31:56,713 INFO L225 Difference]: With dead ends: 1127 [2021-11-20 06:31:56,714 INFO L226 Difference]: Without dead ends: 573 [2021-11-20 06:31:56,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:31:56,719 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 899 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:31:56,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [907 Valid, 3983 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:31:56,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-11-20 06:31:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2021-11-20 06:31:56,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 339 states have (on average 1.238938053097345) internal successors, (420), 343 states have internal predecessors, (420), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (239), 197 states have call predecessors, (239), 196 states have call successors, (239) [2021-11-20 06:31:56,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 857 transitions. [2021-11-20 06:31:56,762 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 857 transitions. Word has length 305 [2021-11-20 06:31:56,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:31:56,764 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 857 transitions. [2021-11-20 06:31:56,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2021-11-20 06:31:56,764 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 857 transitions. [2021-11-20 06:31:56,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-20 06:31:56,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:31:56,767 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:31:56,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-20 06:31:56,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-20 06:31:56,981 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:31:56,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:31:56,981 INFO L85 PathProgramCache]: Analyzing trace with hash 555293049, now seen corresponding path program 2 times [2021-11-20 06:31:56,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:31:56,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993523471] [2021-11-20 06:31:56,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:31:56,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:31:57,058 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:31:57,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347267057] [2021-11-20 06:31:57,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:31:57,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:31:57,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:31:57,060 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:31:57,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-20 06:31:58,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:31:58,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:31:58,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 3255 conjuncts, 109 conjunts are in the unsatisfiable core [2021-11-20 06:31:58,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:31:59,365 INFO L354 Elim1Store]: treesize reduction 192, result has 50.1 percent of original size [2021-11-20 06:31:59,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 49 select indices, 49 select index equivalence classes, 1128 disjoint index pairs (out of 1176 index pairs), introduced 49 new quantified variables, introduced 48 case distinctions, treesize of input 246 treesize of output 340 [2021-11-20 06:32:05,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:05,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993523471] [2021-11-20 06:32:05,435 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:32:05,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347267057] [2021-11-20 06:32:05,435 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Requested array size exceeds VM limit [2021-11-20 06:32:05,436 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:05,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-20 06:32:05,436 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-20 06:32:05,436 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-20 06:32:05,448 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-20 06:32:05,451 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-20 06:32:05,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-20 06:32:05,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 06:32:05,676 INFO L732 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:05,679 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:32:05,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:32:05 BoogieIcfgContainer [2021-11-20 06:32:05,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:32:05,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:32:05,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:32:05,745 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:32:05,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:31:24" (3/4) ... [2021-11-20 06:32:05,752 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:32:05,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:32:05,753 INFO L158 Benchmark]: Toolchain (without parser) took 47191.27ms. Allocated memory was 90.2MB in the beginning and 482.3MB in the end (delta: 392.2MB). Free memory was 62.1MB in the beginning and 299.3MB in the end (delta: -237.2MB). Peak memory consumption was 155.2MB. Max. memory is 16.1GB. [2021-11-20 06:32:05,754 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 66.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:32:05,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2930.25ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 62.1MB in the beginning and 47.3MB in the end (delta: 14.7MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2021-11-20 06:32:05,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 282.13ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 47.3MB in the beginning and 109.3MB in the end (delta: -62.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:32:05,757 INFO L158 Benchmark]: Boogie Preprocessor took 159.70ms. Allocated memory is still 159.4MB. Free memory was 109.3MB in the beginning and 99.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:32:05,757 INFO L158 Benchmark]: RCFGBuilder took 2312.99ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 58.9MB in the end (delta: 40.8MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2021-11-20 06:32:05,758 INFO L158 Benchmark]: TraceAbstraction took 41490.61ms. Allocated memory was 159.4MB in the beginning and 482.3MB in the end (delta: 323.0MB). Free memory was 57.8MB in the beginning and 300.3MB in the end (delta: -242.5MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2021-11-20 06:32:05,761 INFO L158 Benchmark]: Witness Printer took 7.55ms. Allocated memory is still 482.3MB. Free memory was 300.3MB in the beginning and 299.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:32:05,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 66.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2930.25ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 62.1MB in the beginning and 47.3MB in the end (delta: 14.7MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 282.13ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 47.3MB in the beginning and 109.3MB in the end (delta: -62.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 159.70ms. Allocated memory is still 159.4MB. Free memory was 109.3MB in the beginning and 99.7MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2312.99ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 58.9MB in the end (delta: 40.8MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * TraceAbstraction took 41490.61ms. Allocated memory was 159.4MB in the beginning and 482.3MB in the end (delta: 323.0MB). Free memory was 57.8MB in the beginning and 300.3MB in the end (delta: -242.5MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. * Witness Printer took 7.55ms. Allocated memory is still 482.3MB. Free memory was 300.3MB in the beginning and 299.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7788, overapproximation of __builtin_umull_overflow at line 255. Possible FailurePath: [L6915-L6920] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7360] static __thread int tl_last_error = 0; [L7787-L7935] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7938-L7941] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7943-L7952] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7954-L7957] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7959-L7963] static _Bool s_common_library_initialized = 0 ; [L8467] CALL aws_priority_queue_push_harness() [L8450] struct aws_priority_queue queue; [L8453] CALL, EXPR aws_priority_queue_is_bounded(&queue, 9223372036854775808U, 2) [L6791] CALL, EXPR aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size) [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6791] RET, EXPR aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size) [L6789-L6791] _Bool container_is_bounded = aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size); [L6798-L6799] CALL, EXPR aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)) [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6798-L6799] RET, EXPR aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)) [L6797-L6799] _Bool backpointers_list_is_bounded = aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)); [L6800] return container_is_bounded && backpointers_list_is_bounded; [L8453] RET, EXPR aws_priority_queue_is_bounded(&queue, 9223372036854775808U, 2) [L8453] CALL assume_abort_if_not(aws_priority_queue_is_bounded(&queue, 9223372036854775808U, 2)) [L211] COND FALSE !(!cond) [L8453] RET assume_abort_if_not(aws_priority_queue_is_bounded(&queue, 9223372036854775808U, 2)) [L8454] CALL ensure_priority_queue_has_allocated_members(&queue) [L6804] CALL ensure_array_list_has_allocated_data_member(&queue->container) [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] EXPR list->length [L6743] list->current_size == 0 && list->length == 0 [L6743] COND TRUE list->current_size == 0 && list->length == 0 [L6744] EXPR list->data [L6744-L6746] CALL assume_abort_if_not(list->data == ((void *)0) ) [L211] COND FALSE !(!cond) [L6744-L6746] RET assume_abort_if_not(list->data == ((void *)0) ) [L6747] CALL, EXPR can_fail_allocator() [L6939] return &s_can_fail_allocator_static; [L6747] RET, EXPR can_fail_allocator() [L6747] list->alloc = can_fail_allocator() [L6804] RET ensure_array_list_has_allocated_data_member(&queue->container) [L6805] CALL ensure_array_list_has_allocated_data_member(&queue->backpointers) [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] EXPR list->length [L6743] list->current_size == 0 && list->length == 0 [L6743] COND TRUE list->current_size == 0 && list->length == 0 [L6744] EXPR list->data [L6744-L6746] CALL assume_abort_if_not(list->data == ((void *)0) ) [L211] COND FALSE !(!cond) [L6744-L6746] RET assume_abort_if_not(list->data == ((void *)0) ) [L6747] CALL, EXPR can_fail_allocator() [L6939] return &s_can_fail_allocator_static; [L6747] RET, EXPR can_fail_allocator() [L6747] list->alloc = can_fail_allocator() [L6805] RET ensure_array_list_has_allocated_data_member(&queue->backpointers) [L6806] queue->pred = nondet_compare [L8454] RET ensure_priority_queue_has_allocated_members(&queue) [L8455] CALL, EXPR aws_priority_queue_is_valid(&queue) [L8279] COND FALSE !(!queue) [L8286] EXPR queue->pred [L8285-L8288] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L8291] CALL, EXPR aws_array_list_is_valid(&queue->container) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8291] RET, EXPR aws_array_list_is_valid(&queue->container) [L8290-L8291] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8295] CALL, EXPR aws_priority_queue_backpointers_valid(queue) [L8220] COND FALSE !(!queue) [L8230] CALL, EXPR aws_array_list_is_valid(&queue->backpointers) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8230] RET, EXPR aws_array_list_is_valid(&queue->backpointers) [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230] EXPR queue->backpointers.current_size [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8231] EXPR queue->backpointers.data [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8228-L8233] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8241] EXPR queue->backpointers.item_size [L8240-L8241] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8244] EXPR queue->backpointers.length [L8244] EXPR queue->container.length [L8243-L8244] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8247] EXPR queue->backpointers.current_size [L8246-L8247] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8255-L8258] _Bool backpointers_valid_deep = 1 ; [L8263] EXPR queue->backpointers.current_size [L8263] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8263-L8264] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8261-L8265] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8267-L8270] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8272] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8272] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8295] RET, EXPR aws_priority_queue_backpointers_valid(queue) [L8294-L8295] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8296] return pred_is_valid && container_is_valid && backpointers_valid; [L8455] RET, EXPR aws_priority_queue_is_valid(&queue) [L8455] CALL assume_abort_if_not(aws_priority_queue_is_valid(&queue)) [L211] COND FALSE !(!cond) [L8455] RET assume_abort_if_not(aws_priority_queue_is_valid(&queue)) [L8456] EXPR queue.container.item_size [L8456] CALL, EXPR can_fail_malloc(queue.container.item_size) [L6949] CALL, EXPR nondet_bool() [L261] return __VERIFIER_nondet_bool(); [L6949] RET, EXPR nondet_bool() [L6949-L6951] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L6949-L6951] return nondet_bool() ? ((void *)0) : bounded_malloc(size); [L8456] RET, EXPR can_fail_malloc(queue.container.item_size) [L8456] void *item = can_fail_malloc(queue.container.item_size); [L8459] EXPR item && ((((queue.container.item_size)) == 0) || ((item))) [L8459] CALL assume_abort_if_not(item && ((((queue.container.item_size)) == 0) || ((item)))) [L211] COND FALSE !(!cond) [L8459] RET assume_abort_if_not(item && ((((queue.container.item_size)) == 0) || ((item)))) [L8462] CALL aws_priority_queue_push(&queue, item) [L8307] CALL, EXPR aws_priority_queue_is_valid(queue) [L8279] COND FALSE !(!queue) [L8286] EXPR queue->pred [L8285-L8288] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L8291] CALL, EXPR aws_array_list_is_valid(&queue->container) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8291] RET, EXPR aws_array_list_is_valid(&queue->container) [L8290-L8291] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8295] CALL, EXPR aws_priority_queue_backpointers_valid(queue) [L8220] COND FALSE !(!queue) [L8230] CALL, EXPR aws_array_list_is_valid(&queue->backpointers) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8230] RET, EXPR aws_array_list_is_valid(&queue->backpointers) [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230] EXPR queue->backpointers.current_size [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8231] EXPR queue->backpointers.data [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8228-L8233] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8241] EXPR queue->backpointers.item_size [L8240-L8241] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8244] EXPR queue->backpointers.length [L8244] EXPR queue->container.length [L8243-L8244] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8247] EXPR queue->backpointers.current_size [L8246-L8247] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8255-L8258] _Bool backpointers_valid_deep = 1 ; [L8263] EXPR queue->backpointers.current_size [L8263] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8263-L8264] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8261-L8265] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8267-L8270] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8272] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8272] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8295] RET, EXPR aws_priority_queue_backpointers_valid(queue) [L8294-L8295] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8296] return pred_is_valid && container_is_valid && backpointers_valid; [L8307] RET, EXPR aws_priority_queue_is_valid(queue) [L8307] CALL assume_abort_if_not((aws_priority_queue_is_valid(queue))) [L211] COND FALSE !(!cond) [L8307] RET assume_abort_if_not((aws_priority_queue_is_valid(queue))) [L8308] EXPR item && ((((queue->container.item_size)) == 0) || ((item))) [L8308] EXPR queue->container.item_size [L8308] EXPR item && ((((queue->container.item_size)) == 0) || ((item))) [L8308] CALL assume_abort_if_not((item && ((((queue->container.item_size)) == 0) || ((item))))) [L211] COND FALSE !(!cond) [L8308] RET assume_abort_if_not((item && ((((queue->container.item_size)) == 0) || ((item))))) [L8309-L8311] CALL aws_priority_queue_push_ref(queue, item, ((void *)0) ) [L8320] CALL, EXPR aws_priority_queue_is_valid(queue) [L8279] COND FALSE !(!queue) [L8286] EXPR queue->pred [L8285-L8288] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L8291] CALL, EXPR aws_array_list_is_valid(&queue->container) [L2939] COND TRUE !list [L2940-L2942] return 0 ; [L8291] RET, EXPR aws_array_list_is_valid(&queue->container) [L8290-L8291] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8295] CALL, EXPR aws_priority_queue_backpointers_valid(queue) [L8220] COND TRUE !queue [L8221-L8223] return 0 ; [L8295] RET, EXPR aws_priority_queue_backpointers_valid(queue) [L8294-L8295] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8296] return pred_is_valid && container_is_valid && backpointers_valid; [L8320] RET, EXPR aws_priority_queue_is_valid(queue) [L8320] CALL assume_abort_if_not((aws_priority_queue_is_valid(queue))) [L211] COND FALSE !(!cond) [L8320] RET assume_abort_if_not((aws_priority_queue_is_valid(queue))) [L8321] EXPR item && ((((queue->container.item_size)) == 0) || ((item))) [L8321] EXPR queue->container.item_size [L8321] EXPR item && ((((queue->container.item_size)) == 0) || ((item))) [L8321] CALL assume_abort_if_not((item && ((((queue->container.item_size)) == 0) || ((item))))) [L211] COND FALSE !(!cond) [L8321] RET assume_abort_if_not((item && ((((queue->container.item_size)) == 0) || ((item))))) [L8323] CALL aws_array_list_push_back(&queue->container, item) [L2988] CALL, EXPR aws_array_list_is_valid(list) [L2939] COND TRUE !list [L2940-L2942] return 0 ; [L2988] RET, EXPR aws_array_list_is_valid(list) [L2988] CALL assume_abort_if_not((aws_array_list_is_valid(list))) [L211] COND FALSE !(!cond) [L2988] RET assume_abort_if_not((aws_array_list_is_valid(list))) [L2989] EXPR val && ((((list->item_size)) == 0) || ((val))) [L2989] EXPR list->item_size [L2989] EXPR val && ((((list->item_size)) == 0) || ((val))) [L2989] CALL assume_abort_if_not((val && ((((list->item_size)) == 0) || ((val))))) [L211] COND FALSE !(!cond) [L2989] RET assume_abort_if_not((val && ((((list->item_size)) == 0) || ((val))))) [L2993] CALL aws_array_list_length(list) [L3169] EXPR list->length [L3169] EXPR !list->length || list->data [L3169] EXPR list->data [L3169] EXPR !list->length || list->data [L3169] CALL assume_abort_if_not((!list->length || list->data)) [L211] COND FALSE !(!cond) [L3169] RET assume_abort_if_not((!list->length || list->data)) [L3170] CALL, EXPR aws_array_list_is_valid(list) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L2948] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2948] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3170] RET, EXPR aws_array_list_is_valid(list) [L3170] CALL assume_abort_if_not((aws_array_list_is_valid(list))) [L211] COND FALSE !(!cond) [L3170] RET assume_abort_if_not((aws_array_list_is_valid(list))) [L3171] EXPR list->length [L3171] size_t len = list->length; [L3172] CALL, EXPR aws_array_list_is_valid(list) [L2939] COND TRUE !list [L2940-L2942] return 0 ; [L3172] RET, EXPR aws_array_list_is_valid(list) [L3172] CALL __VERIFIER_assert((aws_array_list_is_valid(list))) [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 233]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 33 procedures, 545 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 41.4s, OverallIterations: 15, TraceHistogramMax: 13, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8639 SdHoareTripleChecker+Valid, 7.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8286 mSDsluCounter, 51181 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41176 mSDsCounter, 1939 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6399 IncrementalHoareTripleChecker+Invalid, 8338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1939 mSolverCounterUnsat, 10005 mSDtfsCounter, 6399 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3422 GetRequests, 3277 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=700occurred in iteration=12, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 387 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 7.7s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 3972 NumberOfCodeBlocks, 3490 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3658 ConstructedInterpolants, 0 QuantifiedInterpolants, 4881 SizeOfPredicates, 55 NumberOfNonLiveVariables, 34997 ConjunctsInSsa, 220 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 7302/7321 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 06:32:05,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:32:08,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:32:08,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:32:08,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:32:08,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:32:08,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:32:08,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:32:08,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:32:08,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:32:08,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:32:08,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:32:08,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:32:08,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:32:08,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:32:08,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:32:08,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:32:08,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:32:08,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:32:08,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:32:08,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:32:08,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:32:08,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:32:08,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:32:08,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:32:08,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:32:08,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:32:08,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:32:08,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:32:08,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:32:08,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:32:08,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:32:08,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:32:08,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:32:08,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:32:08,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:32:08,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:32:08,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:32:08,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:32:08,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:32:08,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:32:08,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:32:08,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-20 06:32:09,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:32:09,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:32:09,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:32:09,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:32:09,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:32:09,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:32:09,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:32:09,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:32:09,040 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:32:09,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:32:09,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:32:09,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:32:09,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:32:09,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:32:09,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:32:09,043 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:32:09,044 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:32:09,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:32:09,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:32:09,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:32:09,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:32:09,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:32:09,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:32:09,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:32:09,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:32:09,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:32:09,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:32:09,048 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:32:09,048 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:32:09,048 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:32:09,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:32:09,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:32:09,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:32:09,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:32:09,050 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2021-11-20 06:32:09,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:32:09,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:32:09,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:32:09,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:32:09,595 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:32:09,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2021-11-20 06:32:09,691 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data/619de98f7/27809ba510834006a5588484b643568d/FLAG5727927ad [2021-11-20 06:32:10,721 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:32:10,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2021-11-20 06:32:10,770 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data/619de98f7/27809ba510834006a5588484b643568d/FLAG5727927ad [2021-11-20 06:32:11,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/data/619de98f7/27809ba510834006a5588484b643568d [2021-11-20 06:32:11,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:32:11,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:32:11,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:32:11,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:32:11,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:32:11,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:32:11" (1/1) ... [2021-11-20 06:32:11,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9d9588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:11, skipping insertion in model container [2021-11-20 06:32:11,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:32:11" (1/1) ... [2021-11-20 06:32:11,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:32:11,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:32:11,667 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-20 06:32:11,675 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-20 06:32:12,975 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:12,976 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:12,977 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:12,978 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:12,979 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,004 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,007 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,012 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,013 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,015 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,017 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,018 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,019 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,581 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:32:13,584 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:32:13,589 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:32:13,593 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:32:13,596 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:32:13,597 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:32:13,600 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:32:13,601 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:32:13,617 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:32:13,618 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:32:13,884 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:32:13,955 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:13,981 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,133 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,134 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,134 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,138 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,138 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,139 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,139 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,143 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,143 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,144 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,144 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,145 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,145 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,149 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,154 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,154 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,155 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,167 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,167 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,183 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,185 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,185 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:32:14,299 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-20 06:32:14,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:32:14,416 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-20 06:32:14,417 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-20 06:32:14,492 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,493 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,493 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,494 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,495 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,510 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,511 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,512 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,513 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,517 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,518 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,519 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,519 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,607 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:32:14,608 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:32:14,609 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:32:14,610 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:32:14,611 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:32:14,612 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:32:14,613 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:32:14,614 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:32:14,615 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:32:14,616 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:32:14,661 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:32:14,691 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,698 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,745 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,746 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,748 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,748 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,748 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,749 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,750 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,751 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,752 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,752 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,753 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,753 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,754 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,756 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,757 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,757 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,757 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,763 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,764 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,795 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,799 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,800 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:32:14,846 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:32:14,878 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-20 06:32:14,879 WARN L230 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_c154081a-bd0e-45b3-a8b0-df3aef1793e5/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-20 06:32:14,924 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,926 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,926 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,927 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,927 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,935 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,936 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,937 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,938 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,939 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,940 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,941 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,941 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:14,982 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 06:32:14,983 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 06:32:14,983 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 06:32:14,984 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 06:32:14,985 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 06:32:14,986 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 06:32:14,987 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 06:32:14,987 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 06:32:14,988 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 06:32:14,988 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 06:32:15,044 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 06:32:15,072 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,079 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,114 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,117 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,118 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,118 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,119 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,119 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,120 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,120 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,121 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,121 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,122 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,122 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,123 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,124 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,124 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,125 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,127 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,133 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,134 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,154 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,155 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,157 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 06:32:15,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:32:15,502 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:32:15,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15 WrapperNode [2021-11-20 06:32:15,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:32:15,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:32:15,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:32:15,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:32:15,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:15,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:15,814 INFO L137 Inliner]: procedures = 717, calls = 1879, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1138 [2021-11-20 06:32:15,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:32:15,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:32:15,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:32:15,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:32:15,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:15,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:15,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:15,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:15,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:15,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:16,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:16,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:32:16,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:32:16,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:32:16,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:32:16,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (1/1) ... [2021-11-20 06:32:16,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:32:16,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:32:16,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:32:16,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:32:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2021-11-20 06:32:16,130 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2021-11-20 06:32:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2021-11-20 06:32:16,130 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2021-11-20 06:32:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-20 06:32:16,131 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-20 06:32:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:32:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-20 06:32:16,131 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-20 06:32:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-20 06:32:16,131 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-20 06:32:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-20 06:32:16,132 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-20 06:32:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 06:32:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-20 06:32:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-20 06:32:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-20 06:32:16,133 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-20 06:32:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2021-11-20 06:32:16,133 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2021-11-20 06:32:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-20 06:32:16,134 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-20 06:32:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 06:32:16,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 06:32:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-20 06:32:16,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-20 06:32:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:32:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:32:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:32:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2021-11-20 06:32:16,135 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2021-11-20 06:32:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-20 06:32:16,135 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-20 06:32:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:32:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:32:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 06:32:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 06:32:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-20 06:32:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-20 06:32:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-20 06:32:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-20 06:32:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-20 06:32:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-20 06:32:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-20 06:32:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-20 06:32:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-20 06:32:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-20 06:32:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-20 06:32:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-20 06:32:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 06:32:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 06:32:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:32:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:32:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-20 06:32:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-20 06:32:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2021-11-20 06:32:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2021-11-20 06:32:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-20 06:32:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-20 06:32:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:32:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-20 06:32:16,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-20 06:32:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:32:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-20 06:32:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:32:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-11-20 06:32:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-11-20 06:32:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-20 06:32:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-20 06:32:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-20 06:32:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-20 06:32:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-20 06:32:16,142 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-20 06:32:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-20 06:32:16,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-20 06:32:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2021-11-20 06:32:16,142 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2021-11-20 06:32:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2021-11-20 06:32:16,143 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2021-11-20 06:32:16,656 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:32:16,658 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:32:21,665 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:32:21,681 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:32:21,682 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-20 06:32:21,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:32:21 BoogieIcfgContainer [2021-11-20 06:32:21,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:32:21,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:32:21,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:32:21,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:32:21,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:32:11" (1/3) ... [2021-11-20 06:32:21,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e2ba18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:32:21, skipping insertion in model container [2021-11-20 06:32:21,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:15" (2/3) ... [2021-11-20 06:32:21,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e2ba18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:32:21, skipping insertion in model container [2021-11-20 06:32:21,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:32:21" (3/3) ... [2021-11-20 06:32:21,718 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2021-11-20 06:32:21,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:32:21,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 06:32:21,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:32:21,798 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=PETRI_NET, 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 [2021-11-20 06:32:21,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 06:32:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 538 states, 308 states have (on average 1.2597402597402598) internal successors, (388), 311 states have internal predecessors, (388), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2021-11-20 06:32:21,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-20 06:32:21,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:21,857 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:21,858 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:21,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:21,866 INFO L85 PathProgramCache]: Analyzing trace with hash -894338078, now seen corresponding path program 1 times [2021-11-20 06:32:21,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:32:21,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064095969] [2021-11-20 06:32:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:21,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:32:21,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:32:21,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:32:21,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:32:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:22,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 06:32:22,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:32:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-20 06:32:23,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:32:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-20 06:32:23,996 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:32:23,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064095969] [2021-11-20 06:32:23,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064095969] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:32:23,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:32:23,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-20 06:32:24,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815781812] [2021-11-20 06:32:24,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:24,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:32:24,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:32:24,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:32:24,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:32:24,064 INFO L87 Difference]: Start difference. First operand has 538 states, 308 states have (on average 1.2597402597402598) internal successors, (388), 311 states have internal predecessors, (388), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 06:32:24,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:24,280 INFO L93 Difference]: Finished difference Result 1063 states and 1683 transitions. [2021-11-20 06:32:24,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:32:24,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2021-11-20 06:32:24,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:24,323 INFO L225 Difference]: With dead ends: 1063 [2021-11-20 06:32:24,323 INFO L226 Difference]: Without dead ends: 531 [2021-11-20 06:32:24,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:32:24,346 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:32:24,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:32:24,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-11-20 06:32:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2021-11-20 06:32:24,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 302 states have (on average 1.2417218543046358) internal successors, (375), 304 states have internal predecessors, (375), 196 states have call successors, (196), 32 states have call predecessors, (196), 31 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2021-11-20 06:32:24,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 765 transitions. [2021-11-20 06:32:24,477 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 765 transitions. Word has length 167 [2021-11-20 06:32:24,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:24,479 INFO L470 AbstractCegarLoop]: Abstraction has 531 states and 765 transitions. [2021-11-20 06:32:24,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 06:32:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 765 transitions. [2021-11-20 06:32:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-20 06:32:24,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:24,486 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:24,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:32:24,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:32:24,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:24,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:24,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1545236068, now seen corresponding path program 1 times [2021-11-20 06:32:24,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:32:24,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157564352] [2021-11-20 06:32:24,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:24,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:32:24,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:32:24,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:32:24,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 06:32:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:25,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:32:25,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:32:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-20 06:32:26,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:32:27,117 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-20 06:32:27,118 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:32:27,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157564352] [2021-11-20 06:32:27,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157564352] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:32:27,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:32:27,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-20 06:32:27,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045201149] [2021-11-20 06:32:27,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:27,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:32:27,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:32:27,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:32:27,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:32:27,124 INFO L87 Difference]: Start difference. First operand 531 states and 765 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 06:32:27,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:27,618 INFO L93 Difference]: Finished difference Result 1031 states and 1498 transitions. [2021-11-20 06:32:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:32:27,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2021-11-20 06:32:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:27,631 INFO L225 Difference]: With dead ends: 1031 [2021-11-20 06:32:27,632 INFO L226 Difference]: Without dead ends: 533 [2021-11-20 06:32:27,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:32:27,639 INFO L933 BasicCegarLoop]: 746 mSDtfsCounter, 83 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:32:27,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 2835 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:32:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-11-20 06:32:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2021-11-20 06:32:27,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 303 states have (on average 1.2409240924092408) internal successors, (376), 306 states have internal predecessors, (376), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2021-11-20 06:32:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 776 transitions. [2021-11-20 06:32:27,742 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 776 transitions. Word has length 167 [2021-11-20 06:32:27,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:27,745 INFO L470 AbstractCegarLoop]: Abstraction has 533 states and 776 transitions. [2021-11-20 06:32:27,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 06:32:27,746 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 776 transitions. [2021-11-20 06:32:27,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-20 06:32:27,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:27,759 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:27,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:32:27,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:32:27,981 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:27,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:27,982 INFO L85 PathProgramCache]: Analyzing trace with hash -2083160129, now seen corresponding path program 1 times [2021-11-20 06:32:27,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:32:27,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982849173] [2021-11-20 06:32:27,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:27,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:32:27,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:32:27,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:32:28,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 06:32:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:29,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:32:29,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:32:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-20 06:32:29,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:32:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-11-20 06:32:30,772 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:32:30,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982849173] [2021-11-20 06:32:30,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982849173] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:32:30,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:32:30,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2021-11-20 06:32:30,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9983052] [2021-11-20 06:32:30,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:30,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:32:30,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:32:30,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:32:30,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:32:30,775 INFO L87 Difference]: Start difference. First operand 533 states and 776 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-20 06:32:32,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:32,412 INFO L93 Difference]: Finished difference Result 1054 states and 1578 transitions. [2021-11-20 06:32:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:32:32,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 175 [2021-11-20 06:32:32,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:32,422 INFO L225 Difference]: With dead ends: 1054 [2021-11-20 06:32:32,423 INFO L226 Difference]: Without dead ends: 554 [2021-11-20 06:32:32,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:32:32,429 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 118 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:32:32,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 4112 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 06:32:32,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-11-20 06:32:32,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 552. [2021-11-20 06:32:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 319 states have (on average 1.2476489028213167) internal successors, (398), 322 states have internal predecessors, (398), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2021-11-20 06:32:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 834 transitions. [2021-11-20 06:32:32,492 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 834 transitions. Word has length 175 [2021-11-20 06:32:32,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:32,494 INFO L470 AbstractCegarLoop]: Abstraction has 552 states and 834 transitions. [2021-11-20 06:32:32,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-20 06:32:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 834 transitions. [2021-11-20 06:32:32,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-20 06:32:32,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:32,499 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:32,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:32:32,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:32:32,713 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:32,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:32,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1648389924, now seen corresponding path program 1 times [2021-11-20 06:32:32,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:32:32,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795311395] [2021-11-20 06:32:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:32,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:32:32,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:32:32,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:32:32,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 06:32:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:34,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 1555 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:32:34,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:32:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-20 06:32:34,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:32:35,535 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-11-20 06:32:35,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:32:35,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795311395] [2021-11-20 06:32:35,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795311395] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:32:35,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:32:35,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-20 06:32:35,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951684251] [2021-11-20 06:32:35,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:35,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:32:35,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:32:35,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:32:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:32:35,538 INFO L87 Difference]: Start difference. First operand 552 states and 834 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-20 06:32:36,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:36,414 INFO L93 Difference]: Finished difference Result 1079 states and 1660 transitions. [2021-11-20 06:32:36,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:32:36,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 190 [2021-11-20 06:32:36,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:36,425 INFO L225 Difference]: With dead ends: 1079 [2021-11-20 06:32:36,425 INFO L226 Difference]: Without dead ends: 560 [2021-11-20 06:32:36,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:32:36,432 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 106 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:32:36,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 3526 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 06:32:36,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-20 06:32:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 552. [2021-11-20 06:32:36,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 319 states have (on average 1.2476489028213167) internal successors, (398), 322 states have internal predecessors, (398), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2021-11-20 06:32:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 834 transitions. [2021-11-20 06:32:36,497 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 834 transitions. Word has length 190 [2021-11-20 06:32:36,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:36,498 INFO L470 AbstractCegarLoop]: Abstraction has 552 states and 834 transitions. [2021-11-20 06:32:36,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-20 06:32:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 834 transitions. [2021-11-20 06:32:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-20 06:32:36,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:36,504 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:36,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:32:36,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:32:36,729 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:36,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:36,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1721246480, now seen corresponding path program 1 times [2021-11-20 06:32:36,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:32:36,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924768079] [2021-11-20 06:32:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:36,734 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:32:36,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:32:36,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:32:36,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 06:32:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:38,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:32:38,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:32:38,999 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-20 06:32:38,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:32:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2021-11-20 06:32:40,177 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:32:40,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924768079] [2021-11-20 06:32:40,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924768079] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:32:40,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:32:40,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2021-11-20 06:32:40,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017490882] [2021-11-20 06:32:40,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:40,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:32:40,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:32:40,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:32:40,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:32:40,182 INFO L87 Difference]: Start difference. First operand 552 states and 834 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-20 06:32:42,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:42,503 INFO L93 Difference]: Finished difference Result 1105 states and 1698 transitions. [2021-11-20 06:32:42,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:32:42,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 206 [2021-11-20 06:32:42,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:42,514 INFO L225 Difference]: With dead ends: 1105 [2021-11-20 06:32:42,515 INFO L226 Difference]: Without dead ends: 586 [2021-11-20 06:32:42,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:32:42,522 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 155 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 4690 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:32:42,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 4690 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 06:32:42,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2021-11-20 06:32:42,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 552. [2021-11-20 06:32:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 319 states have (on average 1.2476489028213167) internal successors, (398), 322 states have internal predecessors, (398), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2021-11-20 06:32:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 834 transitions. [2021-11-20 06:32:42,587 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 834 transitions. Word has length 206 [2021-11-20 06:32:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:42,588 INFO L470 AbstractCegarLoop]: Abstraction has 552 states and 834 transitions. [2021-11-20 06:32:42,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2021-11-20 06:32:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 834 transitions. [2021-11-20 06:32:42,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-20 06:32:42,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:42,594 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:42,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-20 06:32:42,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:32:42,812 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:42,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:42,815 INFO L85 PathProgramCache]: Analyzing trace with hash -322888431, now seen corresponding path program 2 times [2021-11-20 06:32:42,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:32:42,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542246001] [2021-11-20 06:32:42,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:32:42,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:32:42,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:32:42,819 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:32:42,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 06:32:45,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:32:45,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:32:45,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:32:45,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:32:46,701 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-11-20 06:32:46,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:32:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2021-11-20 06:32:47,803 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:32:47,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542246001] [2021-11-20 06:32:47,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542246001] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:32:47,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:32:47,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-11-20 06:32:47,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137994944] [2021-11-20 06:32:47,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:47,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:32:47,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:32:47,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:32:47,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:32:47,807 INFO L87 Difference]: Start difference. First operand 552 states and 834 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 06:32:54,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:32:55,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:32:57,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:57,950 INFO L93 Difference]: Finished difference Result 1107 states and 1715 transitions. [2021-11-20 06:32:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:32:57,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 221 [2021-11-20 06:32:57,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:57,962 INFO L225 Difference]: With dead ends: 1107 [2021-11-20 06:32:57,962 INFO L226 Difference]: Without dead ends: 588 [2021-11-20 06:32:57,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:32:57,969 INFO L933 BasicCegarLoop]: 771 mSDtfsCounter, 21 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:32:57,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 3626 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2021-11-20 06:32:57,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2021-11-20 06:32:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 560. [2021-11-20 06:32:58,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 327 states have (on average 1.2477064220183487) internal successors, (408), 330 states have internal predecessors, (408), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2021-11-20 06:32:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 844 transitions. [2021-11-20 06:32:58,023 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 844 transitions. Word has length 221 [2021-11-20 06:32:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:58,024 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 844 transitions. [2021-11-20 06:32:58,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 06:32:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 844 transitions. [2021-11-20 06:32:58,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-20 06:32:58,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:58,030 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:32:58,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:32:58,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:32:58,256 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:58,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:58,257 INFO L85 PathProgramCache]: Analyzing trace with hash -655531569, now seen corresponding path program 1 times [2021-11-20 06:32:58,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:32:58,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572421356] [2021-11-20 06:32:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:58,260 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:32:58,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:32:58,261 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:32:58,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 06:32:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:59,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:32:59,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-11-20 06:33:01,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2021-11-20 06:33:02,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:02,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572421356] [2021-11-20 06:33:02,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572421356] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:02,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:33:02,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-20 06:33:02,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563420023] [2021-11-20 06:33:02,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:02,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:33:02,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:02,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:33:02,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:33:02,728 INFO L87 Difference]: Start difference. First operand 560 states and 844 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 06:33:10,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:33:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:12,503 INFO L93 Difference]: Finished difference Result 1117 states and 1725 transitions. [2021-11-20 06:33:12,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:33:12,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 221 [2021-11-20 06:33:12,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:12,521 INFO L225 Difference]: With dead ends: 1117 [2021-11-20 06:33:12,521 INFO L226 Difference]: Without dead ends: 590 [2021-11-20 06:33:12,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:33:12,528 INFO L933 BasicCegarLoop]: 771 mSDtfsCounter, 17 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4392 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:12,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 4392 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-11-20 06:33:12,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2021-11-20 06:33:12,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 564. [2021-11-20 06:33:12,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 331 states have (on average 1.244712990936556) internal successors, (412), 334 states have internal predecessors, (412), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2021-11-20 06:33:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 848 transitions. [2021-11-20 06:33:12,580 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 848 transitions. Word has length 221 [2021-11-20 06:33:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:12,580 INFO L470 AbstractCegarLoop]: Abstraction has 564 states and 848 transitions. [2021-11-20 06:33:12,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-20 06:33:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 848 transitions. [2021-11-20 06:33:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-20 06:33:12,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:12,586 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:12,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:12,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:12,802 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:12,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1346354701, now seen corresponding path program 1 times [2021-11-20 06:33:12,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:12,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677520692] [2021-11-20 06:33:12,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:12,806 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:12,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:12,808 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:12,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 06:33:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:14,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:33:14,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-11-20 06:33:14,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2021-11-20 06:33:15,523 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:15,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677520692] [2021-11-20 06:33:15,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677520692] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:33:15,523 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:33:15,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-20 06:33:15,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027975038] [2021-11-20 06:33:15,524 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:15,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:33:15,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:15,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:33:15,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:33:15,526 INFO L87 Difference]: Start difference. First operand 564 states and 848 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-20 06:33:15,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:15,620 INFO L93 Difference]: Finished difference Result 1097 states and 1653 transitions. [2021-11-20 06:33:15,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:33:15,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 221 [2021-11-20 06:33:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:15,629 INFO L225 Difference]: With dead ends: 1097 [2021-11-20 06:33:15,629 INFO L226 Difference]: Without dead ends: 571 [2021-11-20 06:33:15,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:33:15,635 INFO L933 BasicCegarLoop]: 763 mSDtfsCounter, 1 mSDsluCounter, 3045 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3808 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:15,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 3808 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:33:15,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-11-20 06:33:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 569. [2021-11-20 06:33:15,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 335 states have (on average 1.2417910447761193) internal successors, (416), 338 states have internal predecessors, (416), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (240), 198 states have call predecessors, (240), 196 states have call successors, (240) [2021-11-20 06:33:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 854 transitions. [2021-11-20 06:33:15,679 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 854 transitions. Word has length 221 [2021-11-20 06:33:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:15,680 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 854 transitions. [2021-11-20 06:33:15,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-20 06:33:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 854 transitions. [2021-11-20 06:33:15,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-20 06:33:15,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:15,686 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:15,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:15,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:15,913 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:15,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1071549365, now seen corresponding path program 1 times [2021-11-20 06:33:15,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:15,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591084187] [2021-11-20 06:33:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:15,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:15,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:15,919 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:15,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-20 06:33:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:17,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 06:33:17,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-20 06:33:18,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2021-11-20 06:33:18,842 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:18,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591084187] [2021-11-20 06:33:18,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591084187] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:18,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:33:18,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-11-20 06:33:18,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185305369] [2021-11-20 06:33:18,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:18,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:33:18,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:18,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:33:18,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:33:18,845 INFO L87 Difference]: Start difference. First operand 569 states and 854 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-20 06:33:19,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:19,942 INFO L93 Difference]: Finished difference Result 1098 states and 1652 transitions. [2021-11-20 06:33:19,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:33:19,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 221 [2021-11-20 06:33:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:19,952 INFO L225 Difference]: With dead ends: 1098 [2021-11-20 06:33:19,952 INFO L226 Difference]: Without dead ends: 567 [2021-11-20 06:33:19,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:33:19,957 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 2 mSDsluCounter, 4204 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4921 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:19,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4921 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:33:19,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-11-20 06:33:19,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2021-11-20 06:33:19,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 333 states have (on average 1.2402402402402402) internal successors, (413), 337 states have internal predecessors, (413), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (239), 197 states have call predecessors, (239), 196 states have call successors, (239) [2021-11-20 06:33:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 850 transitions. [2021-11-20 06:33:20,004 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 850 transitions. Word has length 221 [2021-11-20 06:33:20,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:20,005 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 850 transitions. [2021-11-20 06:33:20,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-20 06:33:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 850 transitions. [2021-11-20 06:33:20,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-20 06:33:20,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:20,011 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:20,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:20,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:20,237 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:20,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:20,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1401750559, now seen corresponding path program 1 times [2021-11-20 06:33:20,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:20,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418750489] [2021-11-20 06:33:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:20,240 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:20,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:20,241 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:20,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-20 06:33:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:21,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1700 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:33:21,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:22,434 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-11-20 06:33:22,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:23,146 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-20 06:33:23,146 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:23,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418750489] [2021-11-20 06:33:23,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418750489] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:23,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:33:23,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-20 06:33:23,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056664065] [2021-11-20 06:33:23,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:23,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:33:23,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:33:23,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:33:23,150 INFO L87 Difference]: Start difference. First operand 567 states and 850 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-20 06:33:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:23,797 INFO L93 Difference]: Finished difference Result 1095 states and 1653 transitions. [2021-11-20 06:33:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:33:23,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 232 [2021-11-20 06:33:23,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:23,805 INFO L225 Difference]: With dead ends: 1095 [2021-11-20 06:33:23,805 INFO L226 Difference]: Without dead ends: 569 [2021-11-20 06:33:23,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:33:23,811 INFO L933 BasicCegarLoop]: 743 mSDtfsCounter, 132 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:23,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 3491 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 06:33:23,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2021-11-20 06:33:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2021-11-20 06:33:23,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 334 states have (on average 1.2395209580838322) internal successors, (414), 339 states have internal predecessors, (414), 198 states have call successors, (198), 32 states have call predecessors, (198), 35 states have return successors, (247), 197 states have call predecessors, (247), 196 states have call successors, (247) [2021-11-20 06:33:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 859 transitions. [2021-11-20 06:33:23,857 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 859 transitions. Word has length 232 [2021-11-20 06:33:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:23,858 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 859 transitions. [2021-11-20 06:33:23,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-20 06:33:23,859 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 859 transitions. [2021-11-20 06:33:23,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-20 06:33:23,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:23,865 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:23,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-20 06:33:24,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:24,080 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:24,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash 865350265, now seen corresponding path program 1 times [2021-11-20 06:33:24,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:24,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26798351] [2021-11-20 06:33:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:24,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:24,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:24,084 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:24,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-20 06:33:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:25,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:33:25,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:26,694 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2021-11-20 06:33:26,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-11-20 06:33:27,527 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:27,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26798351] [2021-11-20 06:33:27,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26798351] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:27,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:33:27,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-20 06:33:27,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218768758] [2021-11-20 06:33:27,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:27,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:33:27,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:27,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:33:27,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:33:27,530 INFO L87 Difference]: Start difference. First operand 569 states and 859 transitions. Second operand has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2021-11-20 06:33:28,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:28,470 INFO L93 Difference]: Finished difference Result 1100 states and 1672 transitions. [2021-11-20 06:33:28,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:33:28,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 255 [2021-11-20 06:33:28,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:28,478 INFO L225 Difference]: With dead ends: 1100 [2021-11-20 06:33:28,479 INFO L226 Difference]: Without dead ends: 572 [2021-11-20 06:33:28,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:33:28,483 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 155 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 4173 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:28,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 4173 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 06:33:28,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2021-11-20 06:33:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 570. [2021-11-20 06:33:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 335 states have (on average 1.2388059701492538) internal successors, (415), 340 states have internal predecessors, (415), 198 states have call successors, (198), 32 states have call predecessors, (198), 35 states have return successors, (247), 197 states have call predecessors, (247), 196 states have call successors, (247) [2021-11-20 06:33:28,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 860 transitions. [2021-11-20 06:33:28,528 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 860 transitions. Word has length 255 [2021-11-20 06:33:28,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:28,529 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 860 transitions. [2021-11-20 06:33:28,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2021-11-20 06:33:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 860 transitions. [2021-11-20 06:33:28,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-20 06:33:28,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:28,534 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:28,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:28,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:28,761 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash -909655914, now seen corresponding path program 2 times [2021-11-20 06:33:28,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:28,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341363433] [2021-11-20 06:33:28,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:33:28,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:28,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:28,765 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:28,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-20 06:33:31,870 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:33:31,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:32,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1933 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:33:32,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2021-11-20 06:33:32,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:33,865 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2021-11-20 06:33:33,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:33,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341363433] [2021-11-20 06:33:33,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341363433] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:33:33,865 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:33:33,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-20 06:33:33,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870700890] [2021-11-20 06:33:33,866 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:33,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:33:33,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:33,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:33:33,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:33:33,868 INFO L87 Difference]: Start difference. First operand 570 states and 860 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 5 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 5 states have call successors, (40) [2021-11-20 06:33:34,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:34,747 INFO L93 Difference]: Finished difference Result 1095 states and 1659 transitions. [2021-11-20 06:33:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:33:34,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 5 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 5 states have call successors, (40) Word has length 286 [2021-11-20 06:33:34,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:34,755 INFO L225 Difference]: With dead ends: 1095 [2021-11-20 06:33:34,756 INFO L226 Difference]: Without dead ends: 572 [2021-11-20 06:33:34,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:33:34,760 INFO L933 BasicCegarLoop]: 737 mSDtfsCounter, 179 mSDsluCounter, 4105 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:34,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 4842 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 06:33:34,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2021-11-20 06:33:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2021-11-20 06:33:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 336 states have (on average 1.2380952380952381) internal successors, (416), 342 states have internal predecessors, (416), 198 states have call successors, (198), 32 states have call predecessors, (198), 36 states have return successors, (251), 197 states have call predecessors, (251), 196 states have call successors, (251) [2021-11-20 06:33:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 865 transitions. [2021-11-20 06:33:34,806 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 865 transitions. Word has length 286 [2021-11-20 06:33:34,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:34,807 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 865 transitions. [2021-11-20 06:33:34,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 5 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 5 states have call successors, (40) [2021-11-20 06:33:34,807 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 865 transitions. [2021-11-20 06:33:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-20 06:33:34,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:34,811 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:34,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:35,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:35,025 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:35,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:35,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1849868559, now seen corresponding path program 1 times [2021-11-20 06:33:35,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:35,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555553910] [2021-11-20 06:33:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:35,029 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:35,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:35,030 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:35,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-20 06:33:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:37,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:33:37,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2021-11-20 06:33:38,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2021-11-20 06:33:39,678 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:39,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555553910] [2021-11-20 06:33:39,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555553910] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:39,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:33:39,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2021-11-20 06:33:39,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843405620] [2021-11-20 06:33:39,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:39,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:33:39,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:39,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:33:39,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:33:39,682 INFO L87 Difference]: Start difference. First operand 572 states and 865 transitions. Second operand has 9 states, 8 states have (on average 15.75) internal successors, (126), 9 states have internal predecessors, (126), 6 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 5 states have call predecessors, (36), 6 states have call successors, (36) [2021-11-20 06:33:42,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:42,367 INFO L93 Difference]: Finished difference Result 1125 states and 1710 transitions. [2021-11-20 06:33:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:33:42,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.75) internal successors, (126), 9 states have internal predecessors, (126), 6 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 5 states have call predecessors, (36), 6 states have call successors, (36) Word has length 294 [2021-11-20 06:33:42,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:42,377 INFO L225 Difference]: With dead ends: 1125 [2021-11-20 06:33:42,378 INFO L226 Difference]: Without dead ends: 594 [2021-11-20 06:33:42,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:33:42,383 INFO L933 BasicCegarLoop]: 702 mSDtfsCounter, 204 mSDsluCounter, 4597 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 5299 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:42,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 5299 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:33:42,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-11-20 06:33:42,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 591. [2021-11-20 06:33:42,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 354 states have (on average 1.2429378531073447) internal successors, (440), 359 states have internal predecessors, (440), 199 states have call successors, (199), 32 states have call predecessors, (199), 36 states have return successors, (252), 199 states have call predecessors, (252), 197 states have call successors, (252) [2021-11-20 06:33:42,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 891 transitions. [2021-11-20 06:33:42,438 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 891 transitions. Word has length 294 [2021-11-20 06:33:42,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:42,440 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 891 transitions. [2021-11-20 06:33:42,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.75) internal successors, (126), 9 states have internal predecessors, (126), 6 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (36), 5 states have call predecessors, (36), 6 states have call successors, (36) [2021-11-20 06:33:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 891 transitions. [2021-11-20 06:33:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-20 06:33:42,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:42,444 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:42,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-20 06:33:42,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:42,661 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:42,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:42,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1522433232, now seen corresponding path program 2 times [2021-11-20 06:33:42,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:42,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302221969] [2021-11-20 06:33:42,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:33:42,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:42,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:42,665 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:42,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-20 06:33:45,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:33:45,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:45,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:33:45,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 297 proven. 3 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2021-11-20 06:33:46,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:47,268 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 25 proven. 22 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2021-11-20 06:33:47,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:47,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302221969] [2021-11-20 06:33:47,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302221969] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:33:47,269 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:33:47,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-11-20 06:33:47,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047512126] [2021-11-20 06:33:47,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:33:47,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:33:47,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:47,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:33:47,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:33:47,271 INFO L87 Difference]: Start difference. First operand 591 states and 891 transitions. Second operand has 12 states, 10 states have (on average 13.1) internal successors, (131), 12 states have internal predecessors, (131), 9 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (57), 5 states have call predecessors, (57), 9 states have call successors, (57) [2021-11-20 06:33:49,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:49,335 INFO L93 Difference]: Finished difference Result 1163 states and 1760 transitions. [2021-11-20 06:33:49,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:33:49,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.1) internal successors, (131), 12 states have internal predecessors, (131), 9 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (57), 5 states have call predecessors, (57), 9 states have call successors, (57) Word has length 279 [2021-11-20 06:33:49,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:49,346 INFO L225 Difference]: With dead ends: 1163 [2021-11-20 06:33:49,346 INFO L226 Difference]: Without dead ends: 613 [2021-11-20 06:33:49,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:33:49,352 INFO L933 BasicCegarLoop]: 707 mSDtfsCounter, 216 mSDsluCounter, 5199 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 5906 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:49,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 5906 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 06:33:49,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-20 06:33:49,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 569. [2021-11-20 06:33:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 334 states have (on average 1.2395209580838322) internal successors, (414), 339 states have internal predecessors, (414), 198 states have call successors, (198), 32 states have call predecessors, (198), 35 states have return successors, (241), 197 states have call predecessors, (241), 196 states have call successors, (241) [2021-11-20 06:33:49,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 853 transitions. [2021-11-20 06:33:49,419 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 853 transitions. Word has length 279 [2021-11-20 06:33:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:49,422 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 853 transitions. [2021-11-20 06:33:49,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.1) internal successors, (131), 12 states have internal predecessors, (131), 9 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (57), 5 states have call predecessors, (57), 9 states have call successors, (57) [2021-11-20 06:33:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 853 transitions. [2021-11-20 06:33:49,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-20 06:33:49,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:49,434 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:49,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-20 06:33:49,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:49,649 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:49,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:49,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2126386533, now seen corresponding path program 3 times [2021-11-20 06:33:49,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:49,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481180422] [2021-11-20 06:33:49,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 06:33:49,652 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:49,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:49,655 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:49,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-20 06:33:51,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 06:33:51,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:51,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:33:51,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2021-11-20 06:33:51,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:52,531 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2021-11-20 06:33:52,531 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:52,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481180422] [2021-11-20 06:33:52,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481180422] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:52,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:33:52,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-20 06:33:52,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276643853] [2021-11-20 06:33:52,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:52,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:33:52,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:52,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:33:52,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:33:52,534 INFO L87 Difference]: Start difference. First operand 569 states and 853 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-20 06:33:53,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:33:53,360 INFO L93 Difference]: Finished difference Result 1080 states and 1635 transitions. [2021-11-20 06:33:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:33:53,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 294 [2021-11-20 06:33:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:33:53,371 INFO L225 Difference]: With dead ends: 1080 [2021-11-20 06:33:53,372 INFO L226 Difference]: Without dead ends: 569 [2021-11-20 06:33:53,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:33:53,381 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 2 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:33:53,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 3500 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 06:33:53,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2021-11-20 06:33:53,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2021-11-20 06:33:53,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 334 states have (on average 1.2395209580838322) internal successors, (414), 339 states have internal predecessors, (414), 198 states have call successors, (198), 32 states have call predecessors, (198), 35 states have return successors, (240), 197 states have call predecessors, (240), 196 states have call successors, (240) [2021-11-20 06:33:53,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 852 transitions. [2021-11-20 06:33:53,453 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 852 transitions. Word has length 294 [2021-11-20 06:33:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:33:53,454 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 852 transitions. [2021-11-20 06:33:53,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-20 06:33:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 852 transitions. [2021-11-20 06:33:53,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-11-20 06:33:53,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:33:53,459 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:33:53,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:53,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:33:53,673 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:33:53,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:53,674 INFO L85 PathProgramCache]: Analyzing trace with hash -448694534, now seen corresponding path program 4 times [2021-11-20 06:33:53,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:33:53,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712366968] [2021-11-20 06:33:53,676 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 06:33:53,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:33:53,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:33:53,678 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:33:53,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-20 06:33:56,206 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 06:33:56,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:33:56,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:33:56,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:57,216 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-11-20 06:33:57,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:33:58,412 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2021-11-20 06:33:58,412 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:33:58,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712366968] [2021-11-20 06:33:58,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712366968] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:33:58,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:33:58,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2021-11-20 06:33:58,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554689109] [2021-11-20 06:33:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:33:58,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:33:58,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:33:58,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:33:58,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:33:58,416 INFO L87 Difference]: Start difference. First operand 569 states and 852 transitions. Second operand has 9 states, 8 states have (on average 13.625) internal successors, (109), 9 states have internal predecessors, (109), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-20 06:34:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:34:00,362 INFO L93 Difference]: Finished difference Result 1113 states and 1672 transitions. [2021-11-20 06:34:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:34:00,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 9 states have internal predecessors, (109), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) Word has length 309 [2021-11-20 06:34:00,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:34:00,372 INFO L225 Difference]: With dead ends: 1113 [2021-11-20 06:34:00,373 INFO L226 Difference]: Without dead ends: 591 [2021-11-20 06:34:00,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:34:00,379 INFO L933 BasicCegarLoop]: 702 mSDtfsCounter, 229 mSDsluCounter, 4569 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 5271 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:34:00,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 5271 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 06:34:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-11-20 06:34:00,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2021-11-20 06:34:00,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 353 states have (on average 1.2436260623229463) internal successors, (439), 357 states have internal predecessors, (439), 199 states have call successors, (199), 32 states have call predecessors, (199), 35 states have return successors, (241), 199 states have call predecessors, (241), 197 states have call successors, (241) [2021-11-20 06:34:00,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 879 transitions. [2021-11-20 06:34:00,427 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 879 transitions. Word has length 309 [2021-11-20 06:34:00,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:34:00,428 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 879 transitions. [2021-11-20 06:34:00,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 9 states have internal predecessors, (109), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-20 06:34:00,429 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 879 transitions. [2021-11-20 06:34:00,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-20 06:34:00,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:34:00,433 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:34:00,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-20 06:34:00,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:34:00,657 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:34:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:34:00,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1869854861, now seen corresponding path program 5 times [2021-11-20 06:34:00,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:34:00,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860728840] [2021-11-20 06:34:00,663 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 06:34:00,663 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:34:00,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:34:00,665 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:34:00,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c154081a-bd0e-45b3-a8b0-df3aef1793e5/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-20 06:34:05,306 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-11-20 06:34:05,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:34:05,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-20 06:34:05,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:34:07,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:34:07,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 17 [2021-11-20 06:34:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2021-11-20 06:34:08,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:37:49,434 WARN L227 SmtUtils]: Spent 3.65m on a formula simplification. DAG size of input: 147 DAG size of output: 131 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 06:37:56,034 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:37:56,034 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 [2021-11-20 06:37:56,138 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-20 06:37:56,139 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 [2021-11-20 06:37:56,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,700 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,701 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,710 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,710 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,711 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,714 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,714 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,715 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,716 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,719 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,725 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,726 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,729 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,729 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,731 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,734 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,734 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:37:56,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:38:09,367 WARN L227 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 302 DAG size of output: 270 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 06:38:09,373 INFO L354 Elim1Store]: treesize reduction 232, result has 75.9 percent of original size [2021-11-20 06:38:09,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 56 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 64 case distinctions, treesize of input 132 treesize of output 764