./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:55:28,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:55:28,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:55:28,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:55:28,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:55:28,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:55:28,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:55:28,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:55:28,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:55:28,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:55:28,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:55:28,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:55:28,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:55:28,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:55:28,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:55:28,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:55:28,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:55:28,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:55:28,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:55:28,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:55:28,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:55:28,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:55:28,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:55:28,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:55:28,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:55:28,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:55:28,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:55:28,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:55:28,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:55:28,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:55:28,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:55:28,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:55:28,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:55:28,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:55:28,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:55:28,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:55:28,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:55:28,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:55:28,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:55:28,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:55:28,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:55:28,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:55:28,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:55:28,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:55:28,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:55:28,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:55:28,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:55:28,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:55:28,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:55:28,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:55:28,710 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:55:28,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:55:28,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:55:28,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:55:28,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:55:28,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:55:28,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:55:28,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:55:28,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:55:28,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:55:28,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:55:28,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:55:28,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:55:28,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:55:28,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:55:28,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:55:28,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:55:28,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:55:28,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:55:28,717 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:55:28,717 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:55:28,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:55:28,728 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2022-11-02 20:55:29,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:55:29,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:55:29,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:55:29,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:55:29,082 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:55:29,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-11-02 20:55:29,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data/176c6f337/bb13f0925dbd4c3f833f36aac579ac63/FLAG0e2c724c6 [2022-11-02 20:55:30,089 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:55:30,092 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-11-02 20:55:30,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data/176c6f337/bb13f0925dbd4c3f833f36aac579ac63/FLAG0e2c724c6 [2022-11-02 20:55:30,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data/176c6f337/bb13f0925dbd4c3f833f36aac579ac63 [2022-11-02 20:55:30,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:55:30,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:55:30,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:55:30,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:55:30,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:55:30,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:30" (1/1) ... [2022-11-02 20:55:30,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c806b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:30, skipping insertion in model container [2022-11-02 20:55:30,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:55:30" (1/1) ... [2022-11-02 20:55:30,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:55:30,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:55:31,009 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-11-02 20:55:31,015 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-11-02 20:55:31,882 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,892 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,892 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,893 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,895 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,910 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,910 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,913 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,914 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,916 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,917 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,918 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:31,919 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,425 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-02 20:55:32,428 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-02 20:55:32,431 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-02 20:55:32,433 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-02 20:55:32,435 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-02 20:55:32,437 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-02 20:55:32,438 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-02 20:55:32,439 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-02 20:55:32,442 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-02 20:55:32,443 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-02 20:55:32,651 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-02 20:55:32,751 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,764 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,832 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,832 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,833 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,833 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,834 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,834 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,835 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,836 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,836 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,836 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,837 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,837 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,838 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,840 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,841 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,841 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,842 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,846 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,846 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,855 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,856 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,856 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:32,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:55:32,916 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:55:32,950 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-11-02 20:55:32,951 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-11-02 20:55:33,020 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,021 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,021 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,022 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,022 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,032 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,033 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,035 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,036 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,037 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,038 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,039 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,039 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,106 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-02 20:55:33,107 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-02 20:55:33,108 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-02 20:55:33,109 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-02 20:55:33,110 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-02 20:55:33,111 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-02 20:55:33,112 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-02 20:55:33,113 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-02 20:55:33,114 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-02 20:55:33,114 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-02 20:55:33,166 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-02 20:55:33,192 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,200 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,246 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,247 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,248 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,248 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,249 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,249 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,250 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,251 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,252 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,252 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,253 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,253 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,254 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,256 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,256 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,257 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,258 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,260 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,262 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,268 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,270 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,271 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:55:33,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:55:33,573 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:55:33,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33 WrapperNode [2022-11-02 20:55:33,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:55:33,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:55:33,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:55:33,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:55:33,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,744 INFO L138 Inliner]: procedures = 697, calls = 1879, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1163 [2022-11-02 20:55:33,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:55:33,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:55:33,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:55:33,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:55:33,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,860 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:55:33,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:55:33,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:55:33,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:55:33,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (1/1) ... [2022-11-02 20:55:33,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:55:33,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:33,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:55:33,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:55:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-02 20:55:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-02 20:55:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2022-11-02 20:55:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2022-11-02 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-02 20:55:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-02 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-02 20:55:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-02 20:55:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-02 20:55:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-02 20:55:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-02 20:55:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-02 20:55:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-02 20:55:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-02 20:55:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-02 20:55:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-02 20:55:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:55:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-02 20:55:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-02 20:55:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-02 20:55:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-02 20:55:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:55:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:55:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:55:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-02 20:55:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-02 20:55:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-02 20:55:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-02 20:55:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:55:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:55:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-02 20:55:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-02 20:55:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-02 20:55:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-02 20:55:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-02 20:55:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-02 20:55:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-02 20:55:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-02 20:55:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-02 20:55:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-02 20:55:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-02 20:55:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-02 20:55:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:55:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:55:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:55:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:55:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-02 20:55:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-02 20:55:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-02 20:55:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-02 20:55:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-02 20:55:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-02 20:55:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:55:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-02 20:55:33,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-02 20:55:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:55:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:55:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-02 20:55:33,999 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-02 20:55:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-02 20:55:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-02 20:55:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-02 20:55:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-02 20:55:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-02 20:55:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-02 20:55:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:55:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-02 20:55:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-02 20:55:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-11-02 20:55:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-11-02 20:55:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-02 20:55:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-02 20:55:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:55:34,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:55:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:55:34,425 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:55:34,428 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:55:36,109 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:55:36,132 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:55:36,132 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-02 20:55:36,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:36 BoogieIcfgContainer [2022-11-02 20:55:36,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:55:36,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:55:36,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:55:36,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:55:36,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:55:30" (1/3) ... [2022-11-02 20:55:36,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0e3373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:36, skipping insertion in model container [2022-11-02 20:55:36,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:55:33" (2/3) ... [2022-11-02 20:55:36,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0e3373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:55:36, skipping insertion in model container [2022-11-02 20:55:36,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:55:36" (3/3) ... [2022-11-02 20:55:36,148 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2022-11-02 20:55:36,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:55:36,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:55:36,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:55:36,291 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44ceb4b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:55:36,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 20:55:36,300 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) [2022-11-02 20:55:36,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-02 20:55:36,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:36,335 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:36,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:36,344 INFO L85 PathProgramCache]: Analyzing trace with hash 366145985, now seen corresponding path program 1 times [2022-11-02 20:55:36,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:36,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655337732] [2022-11-02 20:55:36,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:36,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:55:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 20:55:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:55:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:55:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:55:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:55:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:55:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:55:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-02 20:55:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-02 20:55:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:55:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:55:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-02 20:55:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:55:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-02 20:55:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:55:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 20:55:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:55:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-02 20:55:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-02 20:55:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-02 20:55:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-02 20:55:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:55:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 20:55:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:55:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-11-02 20:55:37,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:37,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655337732] [2022-11-02 20:55:37,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655337732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:37,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:37,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:55:37,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900667701] [2022-11-02 20:55:37,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:37,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:55:37,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:37,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:55:37,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:55:37,818 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) [2022-11-02 20:55:39,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:39,761 INFO L93 Difference]: Finished difference Result 1235 states and 2048 transitions. [2022-11-02 20:55:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:55:39,764 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 [2022-11-02 20:55:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:39,799 INFO L225 Difference]: With dead ends: 1235 [2022-11-02 20:55:39,800 INFO L226 Difference]: Without dead ends: 696 [2022-11-02 20:55:39,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:55:39,818 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 333 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:39,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1076 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:55:39,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-02 20:55:39,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 538. [2022-11-02 20:55:39,958 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) [2022-11-02 20:55:39,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 772 transitions. [2022-11-02 20:55:39,967 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 772 transitions. Word has length 167 [2022-11-02 20:55:39,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:39,968 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 772 transitions. [2022-11-02 20:55:39,968 INFO L496 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) [2022-11-02 20:55:39,968 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 772 transitions. [2022-11-02 20:55:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-02 20:55:39,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:39,975 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:39,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:55:39,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:39,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:39,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1489247165, now seen corresponding path program 1 times [2022-11-02 20:55:39,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:39,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681229963] [2022-11-02 20:55:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:39,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:55:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 20:55:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:55:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:55:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:55:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:55:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:55:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:55:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-02 20:55:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-02 20:55:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:55:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-02 20:55:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-02 20:55:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-02 20:55:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-02 20:55:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:55:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 20:55:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-02 20:55:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-02 20:55:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-02 20:55:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-02 20:55:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-02 20:55:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:55:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 20:55:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-02 20:55:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-02 20:55:41,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681229963] [2022-11-02 20:55:41,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681229963] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:55:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498253715] [2022-11-02 20:55:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:41,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:41,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:41,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:41,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:55:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:41,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 2438 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:55:41,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-02 20:55:41,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:41,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498253715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:41,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:55:41,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-02 20:55:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494209335] [2022-11-02 20:55:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:41,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:41,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:41,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:55:41,923 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) [2022-11-02 20:55:42,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:42,515 INFO L93 Difference]: Finished difference Result 1045 states and 1512 transitions. [2022-11-02 20:55:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:42,516 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 [2022-11-02 20:55:42,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:42,522 INFO L225 Difference]: With dead ends: 1045 [2022-11-02 20:55:42,522 INFO L226 Difference]: Without dead ends: 540 [2022-11-02 20:55:42,526 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:55:42,527 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 798 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:42,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 2699 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:55:42,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-11-02 20:55:42,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2022-11-02 20:55:42,589 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) [2022-11-02 20:55:42,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 783 transitions. [2022-11-02 20:55:42,605 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 783 transitions. Word has length 167 [2022-11-02 20:55:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:42,607 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 783 transitions. [2022-11-02 20:55:42,608 INFO L496 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) [2022-11-02 20:55:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 783 transitions. [2022-11-02 20:55:42,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-02 20:55:42,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:42,612 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:42,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:42,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:42,839 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:42,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:42,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1823728084, now seen corresponding path program 1 times [2022-11-02 20:55:42,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:42,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931627510] [2022-11-02 20:55:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:42,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:55:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 20:55:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:55:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:55:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:55:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:55:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:55:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 20:55:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-02 20:55:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:55:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-02 20:55:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-02 20:55:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:55:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-02 20:55:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-02 20:55:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-02 20:55:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-02 20:55:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:55:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-02 20:55:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-02 20:55:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 20:55:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-02 20:55:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 20:55:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-02 20:55:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-02 20:55:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:55:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-02 20:55:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-02 20:55:43,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:43,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931627510] [2022-11-02 20:55:43,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931627510] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:55:43,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518302485] [2022-11-02 20:55:43,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:43,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:43,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:43,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:43,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:55:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:44,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:55:44,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-02 20:55:44,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:44,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518302485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:44,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:55:44,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-11-02 20:55:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278113906] [2022-11-02 20:55:44,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:44,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:55:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:44,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:55:44,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:55:44,797 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) [2022-11-02 20:55:45,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:45,719 INFO L93 Difference]: Finished difference Result 1068 states and 1592 transitions. [2022-11-02 20:55:45,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:55:45,720 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 [2022-11-02 20:55:45,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:45,725 INFO L225 Difference]: With dead ends: 1068 [2022-11-02 20:55:45,725 INFO L226 Difference]: Without dead ends: 561 [2022-11-02 20:55:45,728 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:55:45,729 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 839 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:45,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 3837 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:55:45,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-11-02 20:55:45,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 559. [2022-11-02 20:55:45,769 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) [2022-11-02 20:55:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2022-11-02 20:55:45,775 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 175 [2022-11-02 20:55:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:45,776 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2022-11-02 20:55:45,776 INFO L496 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) [2022-11-02 20:55:45,776 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2022-11-02 20:55:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-02 20:55:45,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:45,780 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:45,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:46,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:46,003 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:46,004 INFO L85 PathProgramCache]: Analyzing trace with hash 448672907, now seen corresponding path program 1 times [2022-11-02 20:55:46,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:46,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633185317] [2022-11-02 20:55:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:46,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:46,092 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:55:46,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494612288] [2022-11-02 20:55:46,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:46,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:46,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:46,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:46,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:55:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:46,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 2629 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:55:46,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-02 20:55:46,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:46,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:46,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633185317] [2022-11-02 20:55:46,880 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:55:46,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494612288] [2022-11-02 20:55:46,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494612288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:46,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:46,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:55:46,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564639097] [2022-11-02 20:55:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:46,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:55:46,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:55:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:55:46,884 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) [2022-11-02 20:55:47,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:47,541 INFO L93 Difference]: Finished difference Result 1093 states and 1674 transitions. [2022-11-02 20:55:47,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:55:47,542 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 [2022-11-02 20:55:47,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:47,548 INFO L225 Difference]: With dead ends: 1093 [2022-11-02 20:55:47,548 INFO L226 Difference]: Without dead ends: 567 [2022-11-02 20:55:47,552 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:55:47,553 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 822 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:47,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 3341 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:55:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-11-02 20:55:47,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 559. [2022-11-02 20:55:47,598 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) [2022-11-02 20:55:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2022-11-02 20:55:47,605 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 190 [2022-11-02 20:55:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:47,605 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2022-11-02 20:55:47,606 INFO L496 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) [2022-11-02 20:55:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2022-11-02 20:55:47,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-02 20:55:47,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:47,610 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:47,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:47,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:47,830 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:47,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:47,830 INFO L85 PathProgramCache]: Analyzing trace with hash 478941137, now seen corresponding path program 1 times [2022-11-02 20:55:47,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:47,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988952153] [2022-11-02 20:55:47,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:47,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:47,924 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:55:47,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512078097] [2022-11-02 20:55:47,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:47,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:47,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:47,926 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:47,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:55:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:48,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 2701 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:55:48,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-11-02 20:55:48,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:48,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:48,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988952153] [2022-11-02 20:55:48,858 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:55:48,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512078097] [2022-11-02 20:55:48,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512078097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:48,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:48,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:55:48,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858363068] [2022-11-02 20:55:48,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:48,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:55:48,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:48,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:55:48,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:55:48,861 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) [2022-11-02 20:55:50,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:50,026 INFO L93 Difference]: Finished difference Result 1103 states and 1681 transitions. [2022-11-02 20:55:50,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:55:50,027 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 [2022-11-02 20:55:50,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:50,037 INFO L225 Difference]: With dead ends: 1103 [2022-11-02 20:55:50,037 INFO L226 Difference]: Without dead ends: 577 [2022-11-02 20:55:50,040 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:55:50,042 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 872 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 4428 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:50,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 4428 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:55:50,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-11-02 20:55:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 559. [2022-11-02 20:55:50,088 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) [2022-11-02 20:55:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2022-11-02 20:55:50,094 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 206 [2022-11-02 20:55:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:50,095 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2022-11-02 20:55:50,096 INFO L496 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) [2022-11-02 20:55:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2022-11-02 20:55:50,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-02 20:55:50,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:50,101 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:50,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:50,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:50,315 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:50,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:50,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1017677968, now seen corresponding path program 2 times [2022-11-02 20:55:50,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:50,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146535854] [2022-11-02 20:55:50,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:50,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:50,404 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:55:50,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274047613] [2022-11-02 20:55:50,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:55:50,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:50,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:50,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:50,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:55:51,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:55:51,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:55:51,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 2842 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:55:51,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-11-02 20:55:51,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:51,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:51,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146535854] [2022-11-02 20:55:51,266 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:55:51,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274047613] [2022-11-02 20:55:51,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274047613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:51,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:51,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:55:51,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024251522] [2022-11-02 20:55:51,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:51,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:55:51,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:51,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:55:51,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:55:51,269 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) [2022-11-02 20:55:51,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:51,839 INFO L93 Difference]: Finished difference Result 1079 states and 1634 transitions. [2022-11-02 20:55:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:55:51,840 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 [2022-11-02 20:55:51,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:51,845 INFO L225 Difference]: With dead ends: 1079 [2022-11-02 20:55:51,846 INFO L226 Difference]: Without dead ends: 561 [2022-11-02 20:55:51,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:55:51,850 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 850 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 3338 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:51,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 3338 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:55:51,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-11-02 20:55:51,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2022-11-02 20:55:51,892 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) [2022-11-02 20:55:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 850 transitions. [2022-11-02 20:55:51,899 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 850 transitions. Word has length 221 [2022-11-02 20:55:51,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:51,899 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 850 transitions. [2022-11-02 20:55:51,900 INFO L496 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) [2022-11-02 20:55:51,900 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 850 transitions. [2022-11-02 20:55:51,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-02 20:55:51,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:51,904 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:51,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-02 20:55:52,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-02 20:55:52,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:52,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:52,131 INFO L85 PathProgramCache]: Analyzing trace with hash -861609497, now seen corresponding path program 1 times [2022-11-02 20:55:52,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:52,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905599905] [2022-11-02 20:55:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:52,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:52,216 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:55:52,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387014526] [2022-11-02 20:55:52,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:52,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:52,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:52,218 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:52,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:55:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:52,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 2892 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:55:52,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-11-02 20:55:53,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:53,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:53,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905599905] [2022-11-02 20:55:53,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:55:53,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387014526] [2022-11-02 20:55:53,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387014526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:53,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:53,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:55:53,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744304530] [2022-11-02 20:55:53,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:53,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:55:53,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:53,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:55:53,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:55:53,045 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) [2022-11-02 20:55:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:54,118 INFO L93 Difference]: Finished difference Result 1097 states and 1672 transitions. [2022-11-02 20:55:54,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:55:54,119 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 [2022-11-02 20:55:54,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:54,133 INFO L225 Difference]: With dead ends: 1097 [2022-11-02 20:55:54,133 INFO L226 Difference]: Without dead ends: 577 [2022-11-02 20:55:54,137 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:55:54,139 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 891 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:54,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 4438 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 20:55:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-11-02 20:55:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 575. [2022-11-02 20:55:54,189 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) [2022-11-02 20:55:54,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 870 transitions. [2022-11-02 20:55:54,196 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 870 transitions. Word has length 229 [2022-11-02 20:55:54,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:54,197 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 870 transitions. [2022-11-02 20:55:54,197 INFO L496 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) [2022-11-02 20:55:54,197 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 870 transitions. [2022-11-02 20:55:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-02 20:55:54,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:54,203 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:54,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-02 20:55:54,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 20:55:54,427 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:54,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:54,428 INFO L85 PathProgramCache]: Analyzing trace with hash 994439586, now seen corresponding path program 2 times [2022-11-02 20:55:54,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:54,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347869846] [2022-11-02 20:55:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:54,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:54,521 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:55:54,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1074578783] [2022-11-02 20:55:54,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:55:54,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:54,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:54,523 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:54,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:55:55,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:55:55,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:55:55,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:55:55,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-11-02 20:55:56,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:56,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347869846] [2022-11-02 20:55:56,075 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:55:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074578783] [2022-11-02 20:55:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074578783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:56,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:56,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:55:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612496436] [2022-11-02 20:55:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:56,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:55:56,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:55:56,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:55:56,078 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) [2022-11-02 20:55:56,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:56,823 INFO L93 Difference]: Finished difference Result 1117 states and 1712 transitions. [2022-11-02 20:55:56,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:55:56,824 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 [2022-11-02 20:55:56,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:56,829 INFO L225 Difference]: With dead ends: 1117 [2022-11-02 20:55:56,830 INFO L226 Difference]: Without dead ends: 583 [2022-11-02 20:55:56,834 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:55:56,834 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 874 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:56,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 3971 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:55:56,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-11-02 20:55:56,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 575. [2022-11-02 20:55:56,905 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) [2022-11-02 20:55:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 870 transitions. [2022-11-02 20:55:56,914 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 870 transitions. Word has length 244 [2022-11-02 20:55:56,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:56,915 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 870 transitions. [2022-11-02 20:55:56,915 INFO L496 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) [2022-11-02 20:55:56,915 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 870 transitions. [2022-11-02 20:55:56,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-02 20:55:56,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:56,920 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:56,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:57,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:57,147 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:57,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:57,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1506363748, now seen corresponding path program 3 times [2022-11-02 20:55:57,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:57,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647805704] [2022-11-02 20:55:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:57,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:57,245 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:55:57,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796876308] [2022-11-02 20:55:57,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:55:57,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:57,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:57,247 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:57,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:55:58,301 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-02 20:55:58,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:55:58,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-02 20:55:58,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-11-02 20:55:58,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:58,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:58,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647805704] [2022-11-02 20:55:58,394 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:55:58,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796876308] [2022-11-02 20:55:58,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796876308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:58,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:58,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:55:58,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878674365] [2022-11-02 20:55:58,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:58,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:55:58,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:58,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:55:58,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:55:58,398 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) [2022-11-02 20:55:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:55:58,835 INFO L93 Difference]: Finished difference Result 1092 states and 1666 transitions. [2022-11-02 20:55:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:55:58,836 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 [2022-11-02 20:55:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:55:58,841 INFO L225 Difference]: With dead ends: 1092 [2022-11-02 20:55:58,841 INFO L226 Difference]: Without dead ends: 575 [2022-11-02 20:55:58,848 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:55:58,850 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 2 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:55:58,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3507 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:55:58,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-02 20:55:58,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2022-11-02 20:55:58,886 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) [2022-11-02 20:55:58,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 869 transitions. [2022-11-02 20:55:58,891 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 869 transitions. Word has length 260 [2022-11-02 20:55:58,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:55:58,895 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 869 transitions. [2022-11-02 20:55:58,895 INFO L496 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) [2022-11-02 20:55:58,895 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 869 transitions. [2022-11-02 20:55:58,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-02 20:55:58,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:55:58,898 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:55:58,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:55:59,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:59,123 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:55:59,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:59,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1557399056, now seen corresponding path program 4 times [2022-11-02 20:55:59,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:59,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847348682] [2022-11-02 20:55:59,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:59,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:59,212 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:55:59,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [6361254] [2022-11-02 20:55:59,212 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:55:59,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:55:59,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:55:59,214 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:55:59,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:55:59,675 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:55:59,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:55:59,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:55:59,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:55:59,764 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-02 20:55:59,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:55:59,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:59,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847348682] [2022-11-02 20:55:59,799 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:55:59,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6361254] [2022-11-02 20:55:59,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6361254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:59,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:59,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:55:59,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030957113] [2022-11-02 20:55:59,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:59,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:55:59,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:59,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:55:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:55:59,801 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) [2022-11-02 20:56:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:00,572 INFO L93 Difference]: Finished difference Result 1236 states and 1887 transitions. [2022-11-02 20:56:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:56:00,573 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 [2022-11-02 20:56:00,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:00,578 INFO L225 Difference]: With dead ends: 1236 [2022-11-02 20:56:00,578 INFO L226 Difference]: Without dead ends: 714 [2022-11-02 20:56:00,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:56:00,583 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 158 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 5333 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:00,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 5333 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:56:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-11-02 20:56:00,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 672. [2022-11-02 20:56:00,627 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) [2022-11-02 20:56:00,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1033 transitions. [2022-11-02 20:56:00,633 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1033 transitions. Word has length 290 [2022-11-02 20:56:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:00,634 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 1033 transitions. [2022-11-02 20:56:00,634 INFO L496 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) [2022-11-02 20:56:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1033 transitions. [2022-11-02 20:56:00,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-02 20:56:00,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:00,637 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:56:00,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:00,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:00,859 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:00,859 INFO L85 PathProgramCache]: Analyzing trace with hash 983595122, now seen corresponding path program 5 times [2022-11-02 20:56:00,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:00,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649318743] [2022-11-02 20:56:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:00,964 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:00,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55774846] [2022-11-02 20:56:00,964 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:56:00,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:00,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:00,966 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:00,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-02 20:56:01,550 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:56:01,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:56:01,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:56:01,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:01,685 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-02 20:56:01,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:01,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:01,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649318743] [2022-11-02 20:56:01,686 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:56:01,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55774846] [2022-11-02 20:56:01,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55774846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:01,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:01,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:56:01,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363224008] [2022-11-02 20:56:01,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:01,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:56:01,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:01,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:56:01,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:56:01,689 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) [2022-11-02 20:56:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:02,273 INFO L93 Difference]: Finished difference Result 1401 states and 2211 transitions. [2022-11-02 20:56:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:56:02,274 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 [2022-11-02 20:56:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:02,280 INFO L225 Difference]: With dead ends: 1401 [2022-11-02 20:56:02,280 INFO L226 Difference]: Without dead ends: 762 [2022-11-02 20:56:02,286 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:56:02,286 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 21 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3647 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:02,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3647 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:56:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-11-02 20:56:02,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 690. [2022-11-02 20:56:02,371 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) [2022-11-02 20:56:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1056 transitions. [2022-11-02 20:56:02,377 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1056 transitions. Word has length 290 [2022-11-02 20:56:02,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:02,378 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 1056 transitions. [2022-11-02 20:56:02,378 INFO L496 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) [2022-11-02 20:56:02,378 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1056 transitions. [2022-11-02 20:56:02,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-02 20:56:02,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:02,381 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:56:02,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:02,607 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:02,608 INFO L85 PathProgramCache]: Analyzing trace with hash -746406538, now seen corresponding path program 1 times [2022-11-02 20:56:02,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:02,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938149048] [2022-11-02 20:56:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:02,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:02,700 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:02,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093612930] [2022-11-02 20:56:02,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:02,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:02,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:02,702 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:02,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 20:56:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:03,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 3381 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:56:03,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-11-02 20:56:03,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:03,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:03,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938149048] [2022-11-02 20:56:03,565 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:56:03,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093612930] [2022-11-02 20:56:03,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093612930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:03,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:03,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:56:03,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733176293] [2022-11-02 20:56:03,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:03,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:56:03,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:03,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:56:03,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:56:03,568 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) [2022-11-02 20:56:03,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:03,635 INFO L93 Difference]: Finished difference Result 1367 states and 2131 transitions. [2022-11-02 20:56:03,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:56:03,636 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 [2022-11-02 20:56:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:03,642 INFO L225 Difference]: With dead ends: 1367 [2022-11-02 20:56:03,642 INFO L226 Difference]: Without dead ends: 710 [2022-11-02 20:56:03,648 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:56:03,648 INFO L413 NwaCegarLoop]: 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 [2022-11-02 20:56:03,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2302 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:56:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-02 20:56:03,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 700. [2022-11-02 20:56:03,697 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) [2022-11-02 20:56:03,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1066 transitions. [2022-11-02 20:56:03,704 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1066 transitions. Word has length 290 [2022-11-02 20:56:03,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:03,705 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 1066 transitions. [2022-11-02 20:56:03,705 INFO L496 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) [2022-11-02 20:56:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1066 transitions. [2022-11-02 20:56:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-02 20:56:03,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:03,708 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:56:03,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:03,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-02 20:56:03,923 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:03,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:03,923 INFO L85 PathProgramCache]: Analyzing trace with hash -873088841, now seen corresponding path program 1 times [2022-11-02 20:56:03,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:03,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343162994] [2022-11-02 20:56:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:03,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:04,015 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:04,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895030649] [2022-11-02 20:56:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:04,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:04,018 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:04,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 20:56:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:04,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:56:04,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-02 20:56:05,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:05,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:05,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343162994] [2022-11-02 20:56:05,077 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:56:05,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895030649] [2022-11-02 20:56:05,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895030649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:05,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:05,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:56:05,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18006459] [2022-11-02 20:56:05,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:05,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:56:05,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:05,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:56:05,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:56:05,081 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) [2022-11-02 20:56:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:06,253 INFO L93 Difference]: Finished difference Result 1383 states and 2108 transitions. [2022-11-02 20:56:06,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:56:06,256 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 [2022-11-02 20:56:06,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:06,262 INFO L225 Difference]: With dead ends: 1383 [2022-11-02 20:56:06,262 INFO L226 Difference]: Without dead ends: 724 [2022-11-02 20:56:06,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:56:06,268 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 924 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 5019 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:06,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 5019 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:56:06,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-11-02 20:56:06,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 657. [2022-11-02 20:56:06,312 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) [2022-11-02 20:56:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 997 transitions. [2022-11-02 20:56:06,318 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 997 transitions. Word has length 298 [2022-11-02 20:56:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:06,319 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 997 transitions. [2022-11-02 20:56:06,319 INFO L496 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) [2022-11-02 20:56:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 997 transitions. [2022-11-02 20:56:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-11-02 20:56:06,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:06,322 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:56:06,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:06,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-02 20:56:06,543 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:06,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:06,544 INFO L85 PathProgramCache]: Analyzing trace with hash 230551033, now seen corresponding path program 1 times [2022-11-02 20:56:06,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:06,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838185036] [2022-11-02 20:56:06,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:06,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:06,689 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:06,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609946901] [2022-11-02 20:56:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:06,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:06,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:06,691 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:06,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-02 20:56:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:07,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 3512 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:56:07,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2022-11-02 20:56:07,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:07,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:07,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838185036] [2022-11-02 20:56:07,658 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:56:07,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609946901] [2022-11-02 20:56:07,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609946901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:07,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:07,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:56:07,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002524091] [2022-11-02 20:56:07,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:07,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:56:07,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:07,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:56:07,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:56:07,660 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) [2022-11-02 20:56:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:08,303 INFO L93 Difference]: Finished difference Result 1127 states and 1686 transitions. [2022-11-02 20:56:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:56:08,305 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 [2022-11-02 20:56:08,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:08,309 INFO L225 Difference]: With dead ends: 1127 [2022-11-02 20:56:08,309 INFO L226 Difference]: Without dead ends: 573 [2022-11-02 20:56:08,312 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:56:08,313 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 899 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:08,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 3919 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:56:08,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-11-02 20:56:08,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2022-11-02 20:56:08,350 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) [2022-11-02 20:56:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 857 transitions. [2022-11-02 20:56:08,354 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 857 transitions. Word has length 305 [2022-11-02 20:56:08,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:08,356 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 857 transitions. [2022-11-02 20:56:08,356 INFO L496 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) [2022-11-02 20:56:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 857 transitions. [2022-11-02 20:56:08,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-02 20:56:08,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:08,359 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:56:08,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:08,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-02 20:56:08,579 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:08,580 INFO L85 PathProgramCache]: Analyzing trace with hash 555293049, now seen corresponding path program 2 times [2022-11-02 20:56:08,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:08,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329474085] [2022-11-02 20:56:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:08,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:08,690 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:08,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120297989] [2022-11-02 20:56:08,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:56:08,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:08,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:08,704 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:08,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-02 20:56:10,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:56:10,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:56:10,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:56:10,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-02 20:56:10,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:10,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:10,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329474085] [2022-11-02 20:56:10,288 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:56:10,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120297989] [2022-11-02 20:56:10,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120297989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:10,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:10,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:56:10,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116066471] [2022-11-02 20:56:10,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:10,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:56:10,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:10,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:56:10,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:56:10,290 INFO L87 Difference]: Start difference. First operand 573 states and 857 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-11-02 20:56:11,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:11,341 INFO L93 Difference]: Finished difference Result 1121 states and 1681 transitions. [2022-11-02 20:56:11,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:56:11,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 298 [2022-11-02 20:56:11,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:11,347 INFO L225 Difference]: With dead ends: 1121 [2022-11-02 20:56:11,347 INFO L226 Difference]: Without dead ends: 595 [2022-11-02 20:56:11,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:56:11,351 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 908 mSDsluCounter, 4376 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 5057 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:11,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 5057 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 20:56:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-02 20:56:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 593. [2022-11-02 20:56:11,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 358 states have (on average 1.2430167597765363) internal successors, (445), 361 states have internal predecessors, (445), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (240), 199 states have call predecessors, (240), 197 states have call successors, (240) [2022-11-02 20:56:11,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 884 transitions. [2022-11-02 20:56:11,395 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 884 transitions. Word has length 298 [2022-11-02 20:56:11,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:11,396 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 884 transitions. [2022-11-02 20:56:11,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-11-02 20:56:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 884 transitions. [2022-11-02 20:56:11,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-02 20:56:11,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:11,399 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2022-11-02 20:56:11,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:11,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:11,627 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:11,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2045623242, now seen corresponding path program 3 times [2022-11-02 20:56:11,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:11,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921101892] [2022-11-02 20:56:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:11,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:11,755 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:11,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533506002] [2022-11-02 20:56:11,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:56:11,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:11,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:11,757 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:11,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-02 20:56:13,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-02 20:56:13,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:56:13,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 2030 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 20:56:13,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2022-11-02 20:56:13,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:56:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2022-11-02 20:56:13,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:13,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921101892] [2022-11-02 20:56:13,764 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:56:13,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533506002] [2022-11-02 20:56:13,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533506002] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:56:13,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:56:13,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2022-11-02 20:56:13,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156959057] [2022-11-02 20:56:13,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:56:13,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:56:13,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:13,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:56:13,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:56:13,767 INFO L87 Difference]: Start difference. First operand 593 states and 884 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-02 20:56:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:14,447 INFO L93 Difference]: Finished difference Result 1129 states and 1697 transitions. [2022-11-02 20:56:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:56:14,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 313 [2022-11-02 20:56:14,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:14,455 INFO L225 Difference]: With dead ends: 1129 [2022-11-02 20:56:14,455 INFO L226 Difference]: Without dead ends: 595 [2022-11-02 20:56:14,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:56:14,459 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 22 mSDsluCounter, 4203 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4937 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:14,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4937 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:56:14,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-02 20:56:14,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2022-11-02 20:56:14,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 360 states have (on average 1.2416666666666667) internal successors, (447), 362 states have internal predecessors, (447), 199 states have call successors, (199), 33 states have call predecessors, (199), 34 states have return successors, (239), 199 states have call predecessors, (239), 197 states have call successors, (239) [2022-11-02 20:56:14,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 885 transitions. [2022-11-02 20:56:14,507 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 885 transitions. Word has length 313 [2022-11-02 20:56:14,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:14,508 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 885 transitions. [2022-11-02 20:56:14,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-02 20:56:14,509 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 885 transitions. [2022-11-02 20:56:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-02 20:56:14,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:14,511 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-11-02 20:56:14,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:14,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:14,727 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:14,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:14,727 INFO L85 PathProgramCache]: Analyzing trace with hash 501085837, now seen corresponding path program 4 times [2022-11-02 20:56:14,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:14,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871225959] [2022-11-02 20:56:14,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:14,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:14,830 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:14,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103066089] [2022-11-02 20:56:14,831 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:56:14,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:14,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:14,832 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:14,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-02 20:56:15,426 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:56:15,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:56:15,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:56:15,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:15,567 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-11-02 20:56:15,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:15,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:15,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871225959] [2022-11-02 20:56:15,568 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:56:15,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103066089] [2022-11-02 20:56:15,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103066089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:15,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:15,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:56:15,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641482985] [2022-11-02 20:56:15,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:15,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:56:15,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:15,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:56:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:56:15,573 INFO L87 Difference]: Start difference. First operand 595 states and 885 transitions. Second operand has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2022-11-02 20:56:16,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:16,535 INFO L93 Difference]: Finished difference Result 1296 states and 1946 transitions. [2022-11-02 20:56:16,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:56:16,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 328 [2022-11-02 20:56:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:16,543 INFO L225 Difference]: With dead ends: 1296 [2022-11-02 20:56:16,543 INFO L226 Difference]: Without dead ends: 732 [2022-11-02 20:56:16,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:56:16,548 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 180 mSDsluCounter, 5118 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:16,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 5910 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 20:56:16,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-11-02 20:56:16,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 701. [2022-11-02 20:56:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 436 states have (on average 1.261467889908257) internal successors, (550), 440 states have internal predecessors, (550), 227 states have call successors, (227), 34 states have call predecessors, (227), 36 states have return successors, (279), 226 states have call predecessors, (279), 225 states have call successors, (279) [2022-11-02 20:56:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1056 transitions. [2022-11-02 20:56:16,600 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1056 transitions. Word has length 328 [2022-11-02 20:56:16,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:16,601 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1056 transitions. [2022-11-02 20:56:16,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2022-11-02 20:56:16,601 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1056 transitions. [2022-11-02 20:56:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-11-02 20:56:16,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:16,604 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:16,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:16,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-02 20:56:16,819 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:16,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:16,819 INFO L85 PathProgramCache]: Analyzing trace with hash -593591285, now seen corresponding path program 1 times [2022-11-02 20:56:16,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:16,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405328191] [2022-11-02 20:56:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:16,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:16,923 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:16,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527510688] [2022-11-02 20:56:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:16,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:16,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:16,925 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:16,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-02 20:56:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:17,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 20:56:17,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-11-02 20:56:18,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:18,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:18,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405328191] [2022-11-02 20:56:18,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:56:18,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527510688] [2022-11-02 20:56:18,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527510688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:18,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:18,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:56:18,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087110054] [2022-11-02 20:56:18,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:18,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:56:18,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:56:18,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:56:18,045 INFO L87 Difference]: Start difference. First operand 701 states and 1056 transitions. Second operand has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2022-11-02 20:56:19,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:19,339 INFO L93 Difference]: Finished difference Result 1254 states and 1886 transitions. [2022-11-02 20:56:19,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:56:19,340 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) Word has length 344 [2022-11-02 20:56:19,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:19,344 INFO L225 Difference]: With dead ends: 1254 [2022-11-02 20:56:19,344 INFO L226 Difference]: Without dead ends: 600 [2022-11-02 20:56:19,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-11-02 20:56:19,349 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 973 mSDsluCounter, 4855 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 5512 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:56:19,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 5512 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:56:19,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-11-02 20:56:19,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 573. [2022-11-02 20:56:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 340 states have (on average 1.238235294117647) internal successors, (421), 342 states have internal predecessors, (421), 198 states have call successors, (198), 33 states have call predecessors, (198), 33 states have return successors, (230), 197 states have call predecessors, (230), 196 states have call successors, (230) [2022-11-02 20:56:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 849 transitions. [2022-11-02 20:56:19,387 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 849 transitions. Word has length 344 [2022-11-02 20:56:19,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:19,388 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 849 transitions. [2022-11-02 20:56:19,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2022-11-02 20:56:19,388 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 849 transitions. [2022-11-02 20:56:19,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-11-02 20:56:19,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:19,391 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:19,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:19,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-02 20:56:19,608 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:19,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:19,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1351536022, now seen corresponding path program 2 times [2022-11-02 20:56:19,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:19,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828234886] [2022-11-02 20:56:19,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:19,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:19,718 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:56:19,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137871711] [2022-11-02 20:56:19,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:56:19,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:56:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:19,720 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:56:19,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-02 20:56:21,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:56:21,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:56:21,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 3908 conjuncts, 491 conjunts are in the unsatisfiable core [2022-11-02 20:56:21,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:22,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 36 select indices, 36 select index equivalence classes, 630 disjoint index pairs (out of 630 index pairs), introduced 36 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 109 [2022-11-02 20:56:22,712 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:56:22,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 71 treesize of output 31 [2022-11-02 20:56:26,957 INFO L244 Elim1Store]: Index analysis took 241 ms [2022-11-02 20:56:34,774 WARN L234 SmtUtils]: Spent 7.78s on a formula simplification. DAG size of input: 1059 DAG size of output: 530 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-02 20:56:34,776 INFO L356 Elim1Store]: treesize reduction 704, result has 50.0 percent of original size [2022-11-02 20:56:34,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 177 select indices, 177 select index equivalence classes, 15400 disjoint index pairs (out of 15576 index pairs), introduced 177 new quantified variables, introduced 176 case distinctions, treesize of input 886 treesize of output 1236 [2022-11-02 20:57:40,869 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 176 dual juncts. [2022-11-02 20:57:40,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:40,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828234886] [2022-11-02 20:57:40,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:57:40,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137871711] [2022-11-02 20:57:40,870 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-02 20:57:40,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:41,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:57:41,095 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) [2022-11-02 20:57:41,099 INFO L158 Benchmark]: Toolchain (without parser) took 130513.74ms. Allocated memory was 104.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 77.9MB in the beginning and 387.1MB in the end (delta: -309.3MB). Peak memory consumption was 746.2MB. Max. memory is 16.1GB. [2022-11-02 20:57:41,099 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:57:41,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2984.98ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 77.6MB in the beginning and 78.3MB in the end (delta: -729.4kB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2022-11-02 20:57:41,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 170.93ms. Allocated memory is still 144.7MB. Free memory was 78.3MB in the beginning and 66.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:57:41,100 INFO L158 Benchmark]: Boogie Preprocessor took 133.58ms. Allocated memory is still 144.7MB. Free memory was 66.3MB in the beginning and 56.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:57:41,101 INFO L158 Benchmark]: RCFGBuilder took 2257.21ms. Allocated memory was 144.7MB in the beginning and 216.0MB in the end (delta: 71.3MB). Free memory was 56.6MB in the beginning and 115.0MB in the end (delta: -58.4MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2022-11-02 20:57:41,102 INFO L158 Benchmark]: TraceAbstraction took 124958.88ms. Allocated memory was 216.0MB in the beginning and 1.2GB in the end (delta: 945.8MB). Free memory was 113.9MB in the beginning and 387.1MB in the end (delta: -273.2MB). Peak memory consumption was 671.6MB. Max. memory is 16.1GB. [2022-11-02 20:57:41,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2984.98ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 77.6MB in the beginning and 78.3MB in the end (delta: -729.4kB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 170.93ms. Allocated memory is still 144.7MB. Free memory was 78.3MB in the beginning and 66.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 133.58ms. Allocated memory is still 144.7MB. Free memory was 66.3MB in the beginning and 56.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2257.21ms. Allocated memory was 144.7MB in the beginning and 216.0MB in the end (delta: 71.3MB). Free memory was 56.6MB in the beginning and 115.0MB in the end (delta: -58.4MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * TraceAbstraction took 124958.88ms. Allocated memory was 216.0MB in the beginning and 1.2GB in the end (delta: 945.8MB). Free memory was 113.9MB in the beginning and 387.1MB in the end (delta: -273.2MB). Peak memory consumption was 671.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-02 20:57:41,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:57:43,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:57:43,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:57:43,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:57:43,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:57:43,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:57:43,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:57:43,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:57:43,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:57:43,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:57:43,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:57:43,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:57:43,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:57:43,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:57:43,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:57:43,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:57:43,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:57:43,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:57:43,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:57:43,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:57:43,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:57:43,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:57:43,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:57:43,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:57:43,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:57:43,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:57:43,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:57:43,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:57:43,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:57:43,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:57:43,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:57:43,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:57:43,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:57:43,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:57:43,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:57:43,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:57:43,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:57:43,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:57:43,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:57:43,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:57:43,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:57:43,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:57:43,778 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:57:43,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:57:43,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:57:43,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:57:43,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:57:43,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:57:43,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:57:43,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:57:43,791 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:57:43,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:57:43,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:57:43,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:57:43,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:57:43,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:57:43,794 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:57:43,794 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:57:43,794 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:57:43,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:57:43,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:57:43,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:57:43,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:57:43,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:57:43,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:57:43,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:57:43,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:57:43,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:57:43,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:57:43,797 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:57:43,797 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:57:43,797 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:57:43,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:57:43,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:57:43,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:57:43,798 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2022-11-02 20:57:44,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:57:44,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:57:44,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:57:44,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:57:44,277 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:57:44,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-11-02 20:57:44,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data/763c30c5b/d9f470bc41ca44308d310b04ca8a5529/FLAGf718f8951 [2022-11-02 20:57:45,270 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:57:45,276 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-11-02 20:57:45,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data/763c30c5b/d9f470bc41ca44308d310b04ca8a5529/FLAGf718f8951 [2022-11-02 20:57:45,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/data/763c30c5b/d9f470bc41ca44308d310b04ca8a5529 [2022-11-02 20:57:45,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:57:45,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:57:45,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:57:45,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:57:45,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:57:45,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:57:45" (1/1) ... [2022-11-02 20:57:45,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34687289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:45, skipping insertion in model container [2022-11-02 20:57:45,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:57:45" (1/1) ... [2022-11-02 20:57:45,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:57:45,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:57:46,290 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-11-02 20:57:46,299 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-11-02 20:57:47,341 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,342 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,343 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,343 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,345 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,359 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,364 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,366 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,367 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,369 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,371 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,372 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,372 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:47,787 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-02 20:57:47,788 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-02 20:57:47,789 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-02 20:57:47,791 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-02 20:57:47,802 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-02 20:57:47,803 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-02 20:57:47,804 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-02 20:57:47,806 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-02 20:57:47,808 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-02 20:57:47,815 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-02 20:57:47,994 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-02 20:57:48,030 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,039 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,114 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,115 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,115 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,116 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,116 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,117 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,117 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,118 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,119 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,119 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,119 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,120 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,120 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,123 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,124 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,124 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,125 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,129 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,130 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,139 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,140 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,141 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:57:48,218 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-02 20:57:48,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:57:48,254 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-11-02 20:57:48,254 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-11-02 20:57:48,308 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,309 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,309 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,310 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,311 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,318 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,319 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,320 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,321 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,322 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,323 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,324 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,324 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,364 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-02 20:57:48,365 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-02 20:57:48,366 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-02 20:57:48,367 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-02 20:57:48,368 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-02 20:57:48,369 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-02 20:57:48,370 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-02 20:57:48,370 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-02 20:57:48,371 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-02 20:57:48,372 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-02 20:57:48,398 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-02 20:57:48,416 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,422 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,481 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,481 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,482 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,482 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,483 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,483 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,484 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,485 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,485 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,485 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,486 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,486 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,487 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,488 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,488 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,489 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,489 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,492 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,493 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,501 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,502 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,502 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:57:48,526 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:57:48,542 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-11-02 20:57:48,542 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_5d224b90-1a68-4c9c-b52f-117389e2b5d4/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-11-02 20:57:48,580 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,581 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,581 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,582 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,583 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,590 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,591 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,592 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,592 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,593 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,594 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,595 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,595 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,694 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-02 20:57:48,695 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-02 20:57:48,696 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-02 20:57:48,697 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-02 20:57:48,701 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-02 20:57:48,701 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-02 20:57:48,703 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-02 20:57:48,704 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-02 20:57:48,704 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-02 20:57:48,705 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-02 20:57:48,732 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-02 20:57:48,782 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,809 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,845 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,846 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,847 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,847 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,848 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,848 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,849 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,849 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,850 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,850 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,850 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,851 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,851 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,853 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,853 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,854 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,855 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,859 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,863 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,880 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,881 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,882 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 20:57:48,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:57:49,175 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:57:49,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49 WrapperNode [2022-11-02 20:57:49,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:57:49,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:57:49,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:57:49,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:57:49,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,439 INFO L138 Inliner]: procedures = 717, calls = 1879, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1138 [2022-11-02 20:57:49,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:57:49,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:57:49,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:57:49,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:57:49,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,631 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:57:49,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:57:49,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:57:49,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:57:49,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (1/1) ... [2022-11-02 20:57:49,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:57:49,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:49,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:57:49,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:57:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-02 20:57:49,804 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-02 20:57:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2022-11-02 20:57:49,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2022-11-02 20:57:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-02 20:57:49,805 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-02 20:57:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:57:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-02 20:57:49,805 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-02 20:57:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-02 20:57:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-02 20:57:49,806 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-02 20:57:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-02 20:57:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:57:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-02 20:57:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-02 20:57:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-02 20:57:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-02 20:57:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-02 20:57:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-02 20:57:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-02 20:57:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-02 20:57:49,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-02 20:57:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-02 20:57:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-02 20:57:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-02 20:57:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:57:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:57:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:57:49,809 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-02 20:57:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-02 20:57:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-02 20:57:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-02 20:57:49,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:57:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:57:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-02 20:57:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-02 20:57:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-02 20:57:49,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-02 20:57:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-02 20:57:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-02 20:57:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-02 20:57:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-02 20:57:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-02 20:57:49,815 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-02 20:57:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-02 20:57:49,815 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-02 20:57:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-02 20:57:49,815 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-02 20:57:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:57:49,816 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:57:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:57:49,817 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:57:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-02 20:57:49,818 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-02 20:57:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-02 20:57:49,818 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-02 20:57:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-02 20:57:49,818 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-02 20:57:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:57:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-02 20:57:49,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-02 20:57:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:57:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-02 20:57:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:57:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-02 20:57:49,820 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-02 20:57:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-02 20:57:49,820 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-02 20:57:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-02 20:57:49,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-02 20:57:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-02 20:57:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-02 20:57:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-02 20:57:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-02 20:57:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-11-02 20:57:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-11-02 20:57:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-02 20:57:49,822 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-02 20:57:50,330 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:57:50,332 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:57:54,424 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:57:54,440 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:57:54,445 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-02 20:57:54,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:54 BoogieIcfgContainer [2022-11-02 20:57:54,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:57:54,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:57:54,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:57:54,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:57:54,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:57:45" (1/3) ... [2022-11-02 20:57:54,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd701c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:57:54, skipping insertion in model container [2022-11-02 20:57:54,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:49" (2/3) ... [2022-11-02 20:57:54,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd701c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:57:54, skipping insertion in model container [2022-11-02 20:57:54,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:54" (3/3) ... [2022-11-02 20:57:54,466 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2022-11-02 20:57:54,488 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:57:54,488 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:57:54,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:57:54,598 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6608cd0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:57:54,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 20:57:54,605 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) [2022-11-02 20:57:54,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-02 20:57:54,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:54,630 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:57:54,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:54,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash -894338078, now seen corresponding path program 1 times [2022-11-02 20:57:54,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:57:54,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122442669] [2022-11-02 20:57:54,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:54,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:57:54,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:57:54,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:57:54,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:57:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:55,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:57:55,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-02 20:57:55,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:55,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:57:55,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122442669] [2022-11-02 20:57:55,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122442669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:55,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:55,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:57:55,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376550435] [2022-11-02 20:57:55,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:55,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:57:55,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:57:55,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:57:55,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:57:55,918 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) [2022-11-02 20:57:56,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:56,063 INFO L93 Difference]: Finished difference Result 1063 states and 1683 transitions. [2022-11-02 20:57:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:57:56,066 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 [2022-11-02 20:57:56,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:56,082 INFO L225 Difference]: With dead ends: 1063 [2022-11-02 20:57:56,090 INFO L226 Difference]: Without dead ends: 531 [2022-11-02 20:57:56,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:57:56,108 INFO L413 NwaCegarLoop]: 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 [2022-11-02 20:57:56,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:57:56,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-11-02 20:57:56,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2022-11-02 20:57:56,203 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) [2022-11-02 20:57:56,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 765 transitions. [2022-11-02 20:57:56,212 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 765 transitions. Word has length 167 [2022-11-02 20:57:56,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:56,214 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 765 transitions. [2022-11-02 20:57:56,214 INFO L496 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) [2022-11-02 20:57:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 765 transitions. [2022-11-02 20:57:56,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-02 20:57:56,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:56,219 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:57:56,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:56,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:57:56,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:56,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:56,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1545236068, now seen corresponding path program 1 times [2022-11-02 20:57:56,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:57:56,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292032332] [2022-11-02 20:57:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:56,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:57:56,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:57:56,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:57:56,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:57:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:57,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:57:57,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-02 20:57:57,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:57,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:57:57,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292032332] [2022-11-02 20:57:57,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292032332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:57,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:57,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:57:57,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734675017] [2022-11-02 20:57:57,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:57,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:57:57,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:57:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:57:57,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:57:57,812 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) [2022-11-02 20:57:58,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:58,204 INFO L93 Difference]: Finished difference Result 1031 states and 1498 transitions. [2022-11-02 20:57:58,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:57:58,205 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 [2022-11-02 20:57:58,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:57:58,213 INFO L225 Difference]: With dead ends: 1031 [2022-11-02 20:57:58,213 INFO L226 Difference]: Without dead ends: 533 [2022-11-02 20:57:58,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:57:58,217 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 83 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:57:58,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2830 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:57:58,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-11-02 20:57:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2022-11-02 20:57:58,259 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) [2022-11-02 20:57:58,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 776 transitions. [2022-11-02 20:57:58,266 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 776 transitions. Word has length 167 [2022-11-02 20:57:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:57:58,267 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 776 transitions. [2022-11-02 20:57:58,267 INFO L496 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) [2022-11-02 20:57:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 776 transitions. [2022-11-02 20:57:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-02 20:57:58,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:57:58,271 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:57:58,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:57:58,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:57:58,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:57:58,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:58,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2083160129, now seen corresponding path program 1 times [2022-11-02 20:57:58,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:57:58,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257466612] [2022-11-02 20:57:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:58,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:57:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:57:58,506 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:57:58,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:57:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:59,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:57:59,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:57:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-02 20:57:59,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:57:59,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:57:59,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257466612] [2022-11-02 20:57:59,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257466612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:59,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:59,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:57:59,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67272484] [2022-11-02 20:57:59,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:59,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:57:59,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:57:59,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:57:59,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:57:59,837 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) [2022-11-02 20:58:01,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:01,306 INFO L93 Difference]: Finished difference Result 1054 states and 1578 transitions. [2022-11-02 20:58:01,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:58:01,307 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 [2022-11-02 20:58:01,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:01,314 INFO L225 Difference]: With dead ends: 1054 [2022-11-02 20:58:01,314 INFO L226 Difference]: Without dead ends: 554 [2022-11-02 20:58:01,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:58:01,327 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 133 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 4037 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:01,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 4037 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 20:58:01,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-11-02 20:58:01,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 552. [2022-11-02 20:58:01,388 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) [2022-11-02 20:58:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 834 transitions. [2022-11-02 20:58:01,399 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 834 transitions. Word has length 175 [2022-11-02 20:58:01,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:01,403 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 834 transitions. [2022-11-02 20:58:01,404 INFO L496 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) [2022-11-02 20:58:01,404 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 834 transitions. [2022-11-02 20:58:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-02 20:58:01,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:01,409 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:01,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:01,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:01,623 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:01,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:01,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1648389924, now seen corresponding path program 1 times [2022-11-02 20:58:01,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:01,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615283221] [2022-11-02 20:58:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:01,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:01,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:01,629 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:01,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:58:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:03,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:58:03,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-02 20:58:03,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:03,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:03,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615283221] [2022-11-02 20:58:03,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615283221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:03,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:03,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:58:03,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270443182] [2022-11-02 20:58:03,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:03,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:58:03,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:03,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:58:03,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:58:03,152 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) [2022-11-02 20:58:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:03,878 INFO L93 Difference]: Finished difference Result 1079 states and 1660 transitions. [2022-11-02 20:58:03,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:58:03,879 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 [2022-11-02 20:58:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:03,884 INFO L225 Difference]: With dead ends: 1079 [2022-11-02 20:58:03,885 INFO L226 Difference]: Without dead ends: 560 [2022-11-02 20:58:03,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:58:03,888 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 106 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:03,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3512 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:58:03,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-11-02 20:58:03,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 552. [2022-11-02 20:58:03,925 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) [2022-11-02 20:58:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 834 transitions. [2022-11-02 20:58:03,931 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 834 transitions. Word has length 190 [2022-11-02 20:58:03,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:03,932 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 834 transitions. [2022-11-02 20:58:03,932 INFO L496 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) [2022-11-02 20:58:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 834 transitions. [2022-11-02 20:58:03,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-02 20:58:03,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:03,936 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:03,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:04,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:04,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:04,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:04,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1721246480, now seen corresponding path program 1 times [2022-11-02 20:58:04,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:04,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597384347] [2022-11-02 20:58:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:04,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:04,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:04,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:04,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:58:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:05,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1663 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:58:05,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-11-02 20:58:05,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:05,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:05,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597384347] [2022-11-02 20:58:05,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597384347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:05,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:05,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:58:05,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991989153] [2022-11-02 20:58:05,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:05,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:58:05,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:05,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:58:05,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:58:05,636 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) [2022-11-02 20:58:07,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:07,414 INFO L93 Difference]: Finished difference Result 1105 states and 1698 transitions. [2022-11-02 20:58:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:58:07,415 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 [2022-11-02 20:58:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:07,420 INFO L225 Difference]: With dead ends: 1105 [2022-11-02 20:58:07,420 INFO L226 Difference]: Without dead ends: 586 [2022-11-02 20:58:07,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:58:07,425 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 155 mSDsluCounter, 3965 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 4670 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:07,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 4670 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-02 20:58:07,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-11-02 20:58:07,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 552. [2022-11-02 20:58:07,463 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) [2022-11-02 20:58:07,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 834 transitions. [2022-11-02 20:58:07,468 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 834 transitions. Word has length 206 [2022-11-02 20:58:07,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:07,469 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 834 transitions. [2022-11-02 20:58:07,469 INFO L496 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) [2022-11-02 20:58:07,469 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 834 transitions. [2022-11-02 20:58:07,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-02 20:58:07,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:07,474 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:07,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:07,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:07,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:07,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:07,688 INFO L85 PathProgramCache]: Analyzing trace with hash -322888431, now seen corresponding path program 2 times [2022-11-02 20:58:07,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:07,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77174048] [2022-11-02 20:58:07,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:58:07,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:07,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:07,692 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:07,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:58:09,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:58:09,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:58:09,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:58:09,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-11-02 20:58:10,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:10,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:10,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77174048] [2022-11-02 20:58:10,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77174048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:10,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:10,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:58:10,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607470673] [2022-11-02 20:58:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:10,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:58:10,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:10,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:58:10,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:58:10,301 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) [2022-11-02 20:58:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:16,055 INFO L93 Difference]: Finished difference Result 1107 states and 1715 transitions. [2022-11-02 20:58:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:58:16,059 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 [2022-11-02 20:58:16,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:16,066 INFO L225 Difference]: With dead ends: 1107 [2022-11-02 20:58:16,066 INFO L226 Difference]: Without dead ends: 588 [2022-11-02 20:58:16,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:58:16,077 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 21 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:16,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3622 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-02 20:58:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-11-02 20:58:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 560. [2022-11-02 20:58:16,119 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) [2022-11-02 20:58:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 844 transitions. [2022-11-02 20:58:16,128 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 844 transitions. Word has length 221 [2022-11-02 20:58:16,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:16,130 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 844 transitions. [2022-11-02 20:58:16,130 INFO L496 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) [2022-11-02 20:58:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 844 transitions. [2022-11-02 20:58:16,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-02 20:58:16,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:16,134 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:16,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:16,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:16,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:16,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:16,360 INFO L85 PathProgramCache]: Analyzing trace with hash -655531569, now seen corresponding path program 1 times [2022-11-02 20:58:16,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:16,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198397249] [2022-11-02 20:58:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:16,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:16,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:16,365 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:16,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:58:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:17,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:58:17,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:18,718 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-11-02 20:58:18,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:18,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:18,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198397249] [2022-11-02 20:58:18,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198397249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:18,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:18,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:18,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957193875] [2022-11-02 20:58:18,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:18,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:18,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:18,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:18,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:18,722 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) [2022-11-02 20:58:24,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:24,948 INFO L93 Difference]: Finished difference Result 1117 states and 1725 transitions. [2022-11-02 20:58:24,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:58:24,952 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 [2022-11-02 20:58:24,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:24,958 INFO L225 Difference]: With dead ends: 1117 [2022-11-02 20:58:24,958 INFO L226 Difference]: Without dead ends: 590 [2022-11-02 20:58:24,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:58:24,964 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 17 mSDsluCounter, 3612 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4382 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:24,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4382 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-02 20:58:24,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-11-02 20:58:25,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 564. [2022-11-02 20:58:25,006 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) [2022-11-02 20:58:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 848 transitions. [2022-11-02 20:58:25,013 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 848 transitions. Word has length 221 [2022-11-02 20:58:25,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:25,014 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 848 transitions. [2022-11-02 20:58:25,014 INFO L496 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) [2022-11-02 20:58:25,014 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 848 transitions. [2022-11-02 20:58:25,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-02 20:58:25,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:25,019 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:25,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:25,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:25,237 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:25,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:25,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1346354701, now seen corresponding path program 1 times [2022-11-02 20:58:25,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:25,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546029397] [2022-11-02 20:58:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:25,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:25,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:25,241 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:25,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:58:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:26,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:58:26,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-02 20:58:26,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:26,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:26,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546029397] [2022-11-02 20:58:26,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546029397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:26,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:26,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:58:26,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79449188] [2022-11-02 20:58:26,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:26,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:58:26,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:26,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:58:26,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:58:26,986 INFO L87 Difference]: Start difference. First operand 564 states and 848 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-02 20:58:27,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:27,122 INFO L93 Difference]: Finished difference Result 1097 states and 1653 transitions. [2022-11-02 20:58:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:58:27,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 221 [2022-11-02 20:58:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:27,129 INFO L225 Difference]: With dead ends: 1097 [2022-11-02 20:58:27,130 INFO L226 Difference]: Without dead ends: 571 [2022-11-02 20:58:27,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:58:27,135 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 1 mSDsluCounter, 3039 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:27,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3802 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:58:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-11-02 20:58:27,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 569. [2022-11-02 20:58:27,173 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) [2022-11-02 20:58:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 854 transitions. [2022-11-02 20:58:27,179 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 854 transitions. Word has length 221 [2022-11-02 20:58:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:27,179 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 854 transitions. [2022-11-02 20:58:27,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-02 20:58:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 854 transitions. [2022-11-02 20:58:27,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-02 20:58:27,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:27,184 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:27,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:27,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:27,407 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:27,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:27,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1071549365, now seen corresponding path program 1 times [2022-11-02 20:58:27,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:27,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394335246] [2022-11-02 20:58:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:27,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:27,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:27,412 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:27,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 20:58:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:28,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:58:28,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-02 20:58:29,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:29,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:29,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394335246] [2022-11-02 20:58:29,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394335246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:29,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:29,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:58:29,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826136111] [2022-11-02 20:58:29,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:29,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:58:29,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:29,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:58:29,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:58:29,035 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) [2022-11-02 20:58:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:30,083 INFO L93 Difference]: Finished difference Result 1098 states and 1652 transitions. [2022-11-02 20:58:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:58:30,084 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 [2022-11-02 20:58:30,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:30,089 INFO L225 Difference]: With dead ends: 1098 [2022-11-02 20:58:30,090 INFO L226 Difference]: Without dead ends: 567 [2022-11-02 20:58:30,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:58:30,094 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 2 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4915 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:30,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4915 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:58:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-11-02 20:58:30,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2022-11-02 20:58:30,124 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) [2022-11-02 20:58:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 850 transitions. [2022-11-02 20:58:30,129 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 850 transitions. Word has length 221 [2022-11-02 20:58:30,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:30,129 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 850 transitions. [2022-11-02 20:58:30,130 INFO L496 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) [2022-11-02 20:58:30,130 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 850 transitions. [2022-11-02 20:58:30,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-02 20:58:30,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:30,132 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:30,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:30,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:30,347 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1401750559, now seen corresponding path program 1 times [2022-11-02 20:58:30,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:30,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514493846] [2022-11-02 20:58:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:30,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:30,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:30,356 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:30,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 20:58:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:31,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:58:31,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-02 20:58:32,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:32,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:32,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514493846] [2022-11-02 20:58:32,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514493846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:32,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:32,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:58:32,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130281468] [2022-11-02 20:58:32,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:32,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:58:32,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:32,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:58:32,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:58:32,030 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) [2022-11-02 20:58:32,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:32,622 INFO L93 Difference]: Finished difference Result 1095 states and 1653 transitions. [2022-11-02 20:58:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:58:32,623 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 [2022-11-02 20:58:32,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:32,628 INFO L225 Difference]: With dead ends: 1095 [2022-11-02 20:58:32,628 INFO L226 Difference]: Without dead ends: 569 [2022-11-02 20:58:32,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:58:32,633 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 132 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 3479 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:32,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 3479 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 20:58:32,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-11-02 20:58:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2022-11-02 20:58:32,667 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) [2022-11-02 20:58:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 859 transitions. [2022-11-02 20:58:32,671 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 859 transitions. Word has length 232 [2022-11-02 20:58:32,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:32,672 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 859 transitions. [2022-11-02 20:58:32,672 INFO L496 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) [2022-11-02 20:58:32,672 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 859 transitions. [2022-11-02 20:58:32,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-11-02 20:58:32,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:32,675 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:32,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:32,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:32,899 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:32,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:32,900 INFO L85 PathProgramCache]: Analyzing trace with hash -2058424860, now seen corresponding path program 1 times [2022-11-02 20:58:32,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:32,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194263593] [2022-11-02 20:58:32,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:32,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:32,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:32,904 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:32,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 20:58:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:34,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1824 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:58:34,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-02 20:58:34,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:34,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:34,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194263593] [2022-11-02 20:58:34,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194263593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:34,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:34,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:58:34,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392291755] [2022-11-02 20:58:34,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:34,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:58:34,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:34,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:58:34,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:58:34,817 INFO L87 Difference]: Start difference. First operand 569 states and 859 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2022-11-02 20:58:36,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:36,560 INFO L93 Difference]: Finished difference Result 1119 states and 1698 transitions. [2022-11-02 20:58:36,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:58:36,561 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 240 [2022-11-02 20:58:36,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:36,567 INFO L225 Difference]: With dead ends: 1119 [2022-11-02 20:58:36,567 INFO L226 Difference]: Without dead ends: 591 [2022-11-02 20:58:36,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:58:36,572 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 182 mSDsluCounter, 3936 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 4644 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:36,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 4644 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-02 20:58:36,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-11-02 20:58:36,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2022-11-02 20:58:36,610 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, (248), 199 states have call predecessors, (248), 197 states have call successors, (248) [2022-11-02 20:58:36,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 886 transitions. [2022-11-02 20:58:36,615 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 886 transitions. Word has length 240 [2022-11-02 20:58:36,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:36,615 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 886 transitions. [2022-11-02 20:58:36,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2022-11-02 20:58:36,616 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 886 transitions. [2022-11-02 20:58:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-02 20:58:36,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:36,619 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:36,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:36,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:36,833 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:36,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash 865350265, now seen corresponding path program 2 times [2022-11-02 20:58:36,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:36,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253699728] [2022-11-02 20:58:36,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:58:36,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:36,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:36,837 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:36,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 20:58:39,301 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:58:39,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:58:39,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1936 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:58:39,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-11-02 20:58:39,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:39,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:39,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253699728] [2022-11-02 20:58:39,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253699728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:39,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:39,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:39,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788612871] [2022-11-02 20:58:39,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:39,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:39,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:39,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:39,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:39,670 INFO L87 Difference]: Start difference. First operand 589 states and 886 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) [2022-11-02 20:58:40,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:40,779 INFO L93 Difference]: Finished difference Result 1145 states and 1745 transitions. [2022-11-02 20:58:40,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:58:40,781 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 [2022-11-02 20:58:40,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:40,787 INFO L225 Difference]: With dead ends: 1145 [2022-11-02 20:58:40,787 INFO L226 Difference]: Without dead ends: 597 [2022-11-02 20:58:40,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:58:40,792 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 155 mSDsluCounter, 3413 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 4150 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:40,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 4150 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 20:58:40,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-11-02 20:58:40,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 589. [2022-11-02 20:58:40,832 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, (248), 199 states have call predecessors, (248), 197 states have call successors, (248) [2022-11-02 20:58:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 886 transitions. [2022-11-02 20:58:40,837 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 886 transitions. Word has length 255 [2022-11-02 20:58:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:40,838 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 886 transitions. [2022-11-02 20:58:40,838 INFO L496 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) [2022-11-02 20:58:40,838 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 886 transitions. [2022-11-02 20:58:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-02 20:58:40,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:40,841 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:40,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:41,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:41,055 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:41,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash -909655914, now seen corresponding path program 2 times [2022-11-02 20:58:41,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:41,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292536753] [2022-11-02 20:58:41,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:58:41,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:41,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:41,061 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:41,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 20:58:43,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:58:43,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:58:44,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:58:44,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:44,315 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-11-02 20:58:44,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:44,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:44,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292536753] [2022-11-02 20:58:44,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292536753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:44,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:44,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:58:44,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799462676] [2022-11-02 20:58:44,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:44,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:58:44,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:44,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:58:44,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:58:44,318 INFO L87 Difference]: Start difference. First operand 589 states and 886 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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) [2022-11-02 20:58:45,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:45,183 INFO L93 Difference]: Finished difference Result 1133 states and 1711 transitions. [2022-11-02 20:58:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:58:45,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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 286 [2022-11-02 20:58:45,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:45,189 INFO L225 Difference]: With dead ends: 1133 [2022-11-02 20:58:45,189 INFO L226 Difference]: Without dead ends: 591 [2022-11-02 20:58:45,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:58:45,192 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 179 mSDsluCounter, 3341 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:45,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 4078 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:58:45,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-11-02 20:58:45,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2022-11-02 20:58:45,226 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) [2022-11-02 20:58:45,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 891 transitions. [2022-11-02 20:58:45,231 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 891 transitions. Word has length 286 [2022-11-02 20:58:45,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:45,231 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 891 transitions. [2022-11-02 20:58:45,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 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) [2022-11-02 20:58:45,232 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 891 transitions. [2022-11-02 20:58:45,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-02 20:58:45,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:45,234 INFO L195 NwaCegarLoop]: 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] [2022-11-02 20:58:45,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:45,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:45,459 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:45,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:45,459 INFO L85 PathProgramCache]: Analyzing trace with hash 81352514, now seen corresponding path program 1 times [2022-11-02 20:58:45,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:45,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147518118] [2022-11-02 20:58:45,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:45,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:45,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:45,462 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:45,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 20:58:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:48,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 2233 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:58:48,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-11-02 20:58:48,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:48,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:48,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147518118] [2022-11-02 20:58:48,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147518118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:48,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:48,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:58:48,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993854922] [2022-11-02 20:58:48,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:48,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:58:48,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:58:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:58:48,341 INFO L87 Difference]: Start difference. First operand 591 states and 891 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-11-02 20:58:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:49,630 INFO L93 Difference]: Finished difference Result 1138 states and 1722 transitions. [2022-11-02 20:58:49,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:58:49,631 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), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 309 [2022-11-02 20:58:49,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:49,637 INFO L225 Difference]: With dead ends: 1138 [2022-11-02 20:58:49,637 INFO L226 Difference]: Without dead ends: 594 [2022-11-02 20:58:49,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:58:49,641 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 202 mSDsluCounter, 3997 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 4728 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:49,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 4728 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:58:49,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-11-02 20:58:49,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 592. [2022-11-02 20:58:49,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 355 states have (on average 1.2422535211267605) internal successors, (441), 360 states have internal predecessors, (441), 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) [2022-11-02 20:58:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 892 transitions. [2022-11-02 20:58:49,704 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 892 transitions. Word has length 309 [2022-11-02 20:58:49,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:49,706 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 892 transitions. [2022-11-02 20:58:49,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-11-02 20:58:49,707 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 892 transitions. [2022-11-02 20:58:49,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-02 20:58:49,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:49,710 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:49,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:49,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:49,931 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:49,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:49,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1899349619, now seen corresponding path program 1 times [2022-11-02 20:58:49,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:49,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516446142] [2022-11-02 20:58:49,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:49,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:49,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:49,937 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:49,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 20:58:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:53,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:58:53,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2022-11-02 20:58:53,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:53,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:53,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516446142] [2022-11-02 20:58:53,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516446142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:53,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:53,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:58:53,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466536132] [2022-11-02 20:58:53,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:53,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:58:53,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:53,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:58:53,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:58:53,268 INFO L87 Difference]: Start difference. First operand 592 states and 892 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2022-11-02 20:58:54,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:54,805 INFO L93 Difference]: Finished difference Result 1131 states and 1703 transitions. [2022-11-02 20:58:54,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:58:54,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) Word has length 340 [2022-11-02 20:58:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:54,812 INFO L225 Difference]: With dead ends: 1131 [2022-11-02 20:58:54,812 INFO L226 Difference]: Without dead ends: 592 [2022-11-02 20:58:54,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:58:54,816 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 211 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 4501 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:54,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 4501 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 20:58:54,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-11-02 20:58:54,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2022-11-02 20:58:54,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 355 states have (on average 1.2422535211267605) internal successors, (441), 360 states have internal predecessors, (441), 199 states have call successors, (199), 32 states have call predecessors, (199), 36 states have return successors, (249), 199 states have call predecessors, (249), 197 states have call successors, (249) [2022-11-02 20:58:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 889 transitions. [2022-11-02 20:58:54,856 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 889 transitions. Word has length 340 [2022-11-02 20:58:54,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:54,857 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 889 transitions. [2022-11-02 20:58:54,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2022-11-02 20:58:54,857 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 889 transitions. [2022-11-02 20:58:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-02 20:58:54,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:54,860 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:54,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:55,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:55,083 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:55,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:55,084 INFO L85 PathProgramCache]: Analyzing trace with hash 432331945, now seen corresponding path program 2 times [2022-11-02 20:58:55,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:55,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407430240] [2022-11-02 20:58:55,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:58:55,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:55,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:55,086 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:55,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d224b90-1a68-4c9c-b52f-117389e2b5d4/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process